diff --git a/layout/base/AccessibleCaret.cpp b/layout/base/AccessibleCaret.cpp
index f38cbe2f73d1..68d751bf8006 100644
--- a/layout/base/AccessibleCaret.cpp
+++ b/layout/base/AccessibleCaret.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AccessibleCaret.h b/layout/base/AccessibleCaret.h
index 24037e46118b..9b0c33a1df1a 100644
--- a/layout/base/AccessibleCaret.h
+++ b/layout/base/AccessibleCaret.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AccessibleCaretEventHub.cpp b/layout/base/AccessibleCaretEventHub.cpp
index 834cfc756fba..70d011dc9e33 100644
--- a/layout/base/AccessibleCaretEventHub.cpp
+++ b/layout/base/AccessibleCaretEventHub.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AccessibleCaretEventHub.h b/layout/base/AccessibleCaretEventHub.h
index 0610a7febbe2..af1874483a26 100644
--- a/layout/base/AccessibleCaretEventHub.h
+++ b/layout/base/AccessibleCaretEventHub.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AccessibleCaretLogger.h b/layout/base/AccessibleCaretLogger.h
index 40d0075de45c..5c1e72901f52 100644
--- a/layout/base/AccessibleCaretLogger.h
+++ b/layout/base/AccessibleCaretLogger.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AccessibleCaretManager.cpp b/layout/base/AccessibleCaretManager.cpp
index b2617cae029c..2bcc9d66a66f 100644
--- a/layout/base/AccessibleCaretManager.cpp
+++ b/layout/base/AccessibleCaretManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AccessibleCaretManager.h b/layout/base/AccessibleCaretManager.h
index 85103d8d36a0..a80e18436357 100644
--- a/layout/base/AccessibleCaretManager.h
+++ b/layout/base/AccessibleCaretManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AnchorPositioningUtils.cpp b/layout/base/AnchorPositioningUtils.cpp
index f55f3fa6609f..f772fcdbdc3a 100644
--- a/layout/base/AnchorPositioningUtils.cpp
+++ b/layout/base/AnchorPositioningUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AnchorPositioningUtils.h b/layout/base/AnchorPositioningUtils.h
index ce8d83c0cc7f..92222fd5d30c 100644
--- a/layout/base/AnchorPositioningUtils.h
+++ b/layout/base/AnchorPositioningUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ArenaObjectID.h b/layout/base/ArenaObjectID.h
index eb915613aa19..27eb8922ed5e 100644
--- a/layout/base/ArenaObjectID.h
+++ b/layout/base/ArenaObjectID.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/AutoProfilerStyleMarker.h b/layout/base/AutoProfilerStyleMarker.h
index 938ec635c26a..e03c3ab672a6 100644
--- a/layout/base/AutoProfilerStyleMarker.h
+++ b/layout/base/AutoProfilerStyleMarker.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/CaretAssociationHint.cpp b/layout/base/CaretAssociationHint.cpp
index cc2b525664b1..b820a95fa881 100644
--- a/layout/base/CaretAssociationHint.cpp
+++ b/layout/base/CaretAssociationHint.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/CaretAssociationHint.h b/layout/base/CaretAssociationHint.h
index cd0320e4fc7c..7ffc1ea80ba3 100644
--- a/layout/base/CaretAssociationHint.h
+++ b/layout/base/CaretAssociationHint.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ContainStyleScopeManager.cpp b/layout/base/ContainStyleScopeManager.cpp
index fd90645dc840..a019235cacea 100644
--- a/layout/base/ContainStyleScopeManager.cpp
+++ b/layout/base/ContainStyleScopeManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ContainStyleScopeManager.h b/layout/base/ContainStyleScopeManager.h
index da7d1777de96..f20ff8a0cc00 100644
--- a/layout/base/ContainStyleScopeManager.h
+++ b/layout/base/ContainStyleScopeManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/DepthOrderedFrameList.cpp b/layout/base/DepthOrderedFrameList.cpp
index 7dae55d9460e..937e80fbdd36 100644
--- a/layout/base/DepthOrderedFrameList.cpp
+++ b/layout/base/DepthOrderedFrameList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/DepthOrderedFrameList.h b/layout/base/DepthOrderedFrameList.h
index 5dc64780c8ea..ce4464ea7ec7 100644
--- a/layout/base/DepthOrderedFrameList.h
+++ b/layout/base/DepthOrderedFrameList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/DisplayPortUtils.cpp b/layout/base/DisplayPortUtils.cpp
index 58eced7ae461..fad561b4b6f8 100644
--- a/layout/base/DisplayPortUtils.cpp
+++ b/layout/base/DisplayPortUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/DisplayPortUtils.h b/layout/base/DisplayPortUtils.h
index dd744affd28c..fe65ae6b2610 100644
--- a/layout/base/DisplayPortUtils.h
+++ b/layout/base/DisplayPortUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/FrameProperties.h b/layout/base/FrameProperties.h
index 3c2b88592c3b..fa432ae3e79e 100644
--- a/layout/base/FrameProperties.h
+++ b/layout/base/FrameProperties.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/GeometryUtils.cpp b/layout/base/GeometryUtils.cpp
index 67673c5c306e..1f5759ad1a50 100644
--- a/layout/base/GeometryUtils.cpp
+++ b/layout/base/GeometryUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/GeometryUtils.h b/layout/base/GeometryUtils.h
index 21ed4502dab2..2c638c90a922 100644
--- a/layout/base/GeometryUtils.h
+++ b/layout/base/GeometryUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/LayoutConstants.h b/layout/base/LayoutConstants.h
index ddc104cb0c2a..45d0e207dae1 100644
--- a/layout/base/LayoutConstants.h
+++ b/layout/base/LayoutConstants.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/LayoutLogging.cpp b/layout/base/LayoutLogging.cpp
index b51daf9d0cc0..12e97c93a204 100644
--- a/layout/base/LayoutLogging.cpp
+++ b/layout/base/LayoutLogging.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/LayoutLogging.h b/layout/base/LayoutLogging.h
index 72335ff3eb9e..01b62241e139 100644
--- a/layout/base/LayoutLogging.h
+++ b/layout/base/LayoutLogging.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/LayoutStructs.h b/layout/base/LayoutStructs.h
index a5f54bb89598..48e01fbcf71b 100644
--- a/layout/base/LayoutStructs.h
+++ b/layout/base/LayoutStructs.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/MediaEmulationData.h b/layout/base/MediaEmulationData.h
index 7d4cf4d0d2d0..ea3fcad6f718 100644
--- a/layout/base/MediaEmulationData.h
+++ b/layout/base/MediaEmulationData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/MobileViewportManager.cpp b/layout/base/MobileViewportManager.cpp
index 2c889811194e..cb681cbfa479 100644
--- a/layout/base/MobileViewportManager.cpp
+++ b/layout/base/MobileViewportManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/MobileViewportManager.h b/layout/base/MobileViewportManager.h
index b120fa180f5f..a2b469870922 100644
--- a/layout/base/MobileViewportManager.h
+++ b/layout/base/MobileViewportManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/MotionPathUtils.cpp b/layout/base/MotionPathUtils.cpp
index 71409e1d2a55..ce16c76e5cb8 100644
--- a/layout/base/MotionPathUtils.cpp
+++ b/layout/base/MotionPathUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/MotionPathUtils.h b/layout/base/MotionPathUtils.h
index 32c92b6bcefd..1e50a0fdd23b 100644
--- a/layout/base/MotionPathUtils.h
+++ b/layout/base/MotionPathUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/OverflowChangedTracker.h b/layout/base/OverflowChangedTracker.h
index c36b3050d722..caeabd803146 100644
--- a/layout/base/OverflowChangedTracker.h
+++ b/layout/base/OverflowChangedTracker.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PositionedEventTargeting.cpp b/layout/base/PositionedEventTargeting.cpp
index e8a0a4beba7a..b76da7c37b1e 100644
--- a/layout/base/PositionedEventTargeting.cpp
+++ b/layout/base/PositionedEventTargeting.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PositionedEventTargeting.h b/layout/base/PositionedEventTargeting.h
index 5d7cf7e1cb09..e5723270c0ff 100644
--- a/layout/base/PositionedEventTargeting.h
+++ b/layout/base/PositionedEventTargeting.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresShell.cpp b/layout/base/PresShell.cpp
index e959e4385701..6668daecd05c 100644
--- a/layout/base/PresShell.cpp
+++ b/layout/base/PresShell.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresShell.h b/layout/base/PresShell.h
index 64c617ce8741..b26982069e6f 100644
--- a/layout/base/PresShell.h
+++ b/layout/base/PresShell.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresShellForwards.h b/layout/base/PresShellForwards.h
index a90f0b10a28c..eb00000a8111 100644
--- a/layout/base/PresShellForwards.h
+++ b/layout/base/PresShellForwards.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresShellInlines.h b/layout/base/PresShellInlines.h
index a16fc659a457..c29b133d4e19 100644
--- a/layout/base/PresShellInlines.h
+++ b/layout/base/PresShellInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresShellWidgetListener.cpp b/layout/base/PresShellWidgetListener.cpp
index d97f22ed13f4..11d1400bb3df 100644
--- a/layout/base/PresShellWidgetListener.cpp
+++ b/layout/base/PresShellWidgetListener.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresShellWidgetListener.h b/layout/base/PresShellWidgetListener.h
index dc52f3193ab2..9b8888dd408c 100644
--- a/layout/base/PresShellWidgetListener.h
+++ b/layout/base/PresShellWidgetListener.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/PresState.ipdlh b/layout/base/PresState.ipdlh
index b04d7ed5f09c..8b277bd35d6c 100644
--- a/layout/base/PresState.ipdlh
+++ b/layout/base/PresState.ipdlh
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
-/* vim: set sw=2 ts=8 et tw=80 ft=cpp : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/RelativeTo.h b/layout/base/RelativeTo.h
index 209830ecc052..01c8b6fd1a3e 100644
--- a/layout/base/RelativeTo.h
+++ b/layout/base/RelativeTo.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/RenderingPhase.h b/layout/base/RenderingPhase.h
index ff769f3d9825..65e6d84bb0e8 100644
--- a/layout/base/RenderingPhase.h
+++ b/layout/base/RenderingPhase.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ScrollStyles.cpp b/layout/base/ScrollStyles.cpp
index 5f989053b54e..b77ee2e69935 100644
--- a/layout/base/ScrollStyles.cpp
+++ b/layout/base/ScrollStyles.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ScrollStyles.h b/layout/base/ScrollStyles.h
index 4df3a217d089..3adc2344f24b 100644
--- a/layout/base/ScrollStyles.h
+++ b/layout/base/ScrollStyles.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ShapeUtils.cpp b/layout/base/ShapeUtils.cpp
index b95903c07172..ffe5e2b84cec 100644
--- a/layout/base/ShapeUtils.cpp
+++ b/layout/base/ShapeUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ShapeUtils.h b/layout/base/ShapeUtils.h
index 488fa654324d..8b15a2503747 100644
--- a/layout/base/ShapeUtils.h
+++ b/layout/base/ShapeUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/StackArena.cpp b/layout/base/StackArena.cpp
index 9a710da568c3..69c5af65e085 100644
--- a/layout/base/StackArena.cpp
+++ b/layout/base/StackArena.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/StackArena.h b/layout/base/StackArena.h
index 9e4151b159d4..1702d8568519 100644
--- a/layout/base/StackArena.h
+++ b/layout/base/StackArena.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/StaticPresData.cpp b/layout/base/StaticPresData.cpp
index 464c552ffa3a..43b91cc9a159 100644
--- a/layout/base/StaticPresData.cpp
+++ b/layout/base/StaticPresData.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/StaticPresData.h b/layout/base/StaticPresData.h
index 3f1221f64c53..fd0eaeda8bc7 100644
--- a/layout/base/StaticPresData.h
+++ b/layout/base/StaticPresData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/SurfaceFromElementResult.h b/layout/base/SurfaceFromElementResult.h
index 931041dd6a58..55b87517bd74 100644
--- a/layout/base/SurfaceFromElementResult.h
+++ b/layout/base/SurfaceFromElementResult.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/TouchManager.cpp b/layout/base/TouchManager.cpp
index 0327fde5f4ac..d66b9c5940b6 100644
--- a/layout/base/TouchManager.cpp
+++ b/layout/base/TouchManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/TouchManager.h b/layout/base/TouchManager.h
index 9d37cd032131..36dbd01abbdc 100644
--- a/layout/base/TouchManager.h
+++ b/layout/base/TouchManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/UnitTransforms.h b/layout/base/UnitTransforms.h
index eaa05b5ba79c..44bda4543b9e 100644
--- a/layout/base/UnitTransforms.h
+++ b/layout/base/UnitTransforms.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/Units.h b/layout/base/Units.h
index 70ee7bcb468c..fc770f52e631 100644
--- a/layout/base/Units.h
+++ b/layout/base/Units.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/WordMovementType.h b/layout/base/WordMovementType.h
index 21965f4adc40..f6f718b6c466 100644
--- a/layout/base/WordMovementType.h
+++ b/layout/base/WordMovementType.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ZoomConstraintsClient.cpp b/layout/base/ZoomConstraintsClient.cpp
index a48cdbeb10bc..186c80697473 100644
--- a/layout/base/ZoomConstraintsClient.cpp
+++ b/layout/base/ZoomConstraintsClient.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/ZoomConstraintsClient.h b/layout/base/ZoomConstraintsClient.h
index 59f8845477b3..534b8e70a8cd 100644
--- a/layout/base/ZoomConstraintsClient.h
+++ b/layout/base/ZoomConstraintsClient.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/gtest/TestAccessibleCaretEventHub.cpp b/layout/base/gtest/TestAccessibleCaretEventHub.cpp
index cfe9cc96e523..faeaf3bc14c8 100644
--- a/layout/base/gtest/TestAccessibleCaretEventHub.cpp
+++ b/layout/base/gtest/TestAccessibleCaretEventHub.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/gtest/TestAccessibleCaretManager.cpp b/layout/base/gtest/TestAccessibleCaretManager.cpp
index 8a8816c041d6..add0a985bffd 100644
--- a/layout/base/gtest/TestAccessibleCaretManager.cpp
+++ b/layout/base/gtest/TestAccessibleCaretManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/gtest/moz.build b/layout/base/gtest/moz.build
index e35850223eaa..9e7558fe897f 100644
--- a/layout/base/gtest/moz.build
+++ b/layout/base/gtest/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/moz.build b/layout/base/moz.build
index 823094459b8b..2ec366ca459b 100644
--- a/layout/base/moz.build
+++ b/layout/base/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/nsAutoLayoutPhase.cpp b/layout/base/nsAutoLayoutPhase.cpp
index c99676ed2a7f..f01e541e91c3 100644
--- a/layout/base/nsAutoLayoutPhase.cpp
+++ b/layout/base/nsAutoLayoutPhase.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsAutoLayoutPhase.h b/layout/base/nsAutoLayoutPhase.h
index cba7a644f95f..251222faf848 100644
--- a/layout/base/nsAutoLayoutPhase.h
+++ b/layout/base/nsAutoLayoutPhase.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsBidiPresUtils.cpp b/layout/base/nsBidiPresUtils.cpp
index 8f91df6147e7..a634f5b8970b 100644
--- a/layout/base/nsBidiPresUtils.cpp
+++ b/layout/base/nsBidiPresUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsBidiPresUtils.h b/layout/base/nsBidiPresUtils.h
index f35ef66619a8..7c73b55d078c 100644
--- a/layout/base/nsBidiPresUtils.h
+++ b/layout/base/nsBidiPresUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCSSColorUtils.cpp b/layout/base/nsCSSColorUtils.cpp
index 2e71f3b030c4..e0137ce14b68 100644
--- a/layout/base/nsCSSColorUtils.cpp
+++ b/layout/base/nsCSSColorUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCSSColorUtils.h b/layout/base/nsCSSColorUtils.h
index ce666775e444..0678efcf2190 100644
--- a/layout/base/nsCSSColorUtils.h
+++ b/layout/base/nsCSSColorUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCSSFrameConstructor.cpp b/layout/base/nsCSSFrameConstructor.cpp
index 54a4423b4f92..32a48ae2f1eb 100644
--- a/layout/base/nsCSSFrameConstructor.cpp
+++ b/layout/base/nsCSSFrameConstructor.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCSSFrameConstructor.h b/layout/base/nsCSSFrameConstructor.h
index aa83cc573770..2ffc91d405c2 100644
--- a/layout/base/nsCSSFrameConstructor.h
+++ b/layout/base/nsCSSFrameConstructor.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCaret.cpp b/layout/base/nsCaret.cpp
index e956a7f75661..4cb786d924b4 100644
--- a/layout/base/nsCaret.cpp
+++ b/layout/base/nsCaret.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCaret.h b/layout/base/nsCaret.h
index a7d6775ca6c6..2fb643a9dd31 100644
--- a/layout/base/nsCaret.h
+++ b/layout/base/nsCaret.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCompatibility.h b/layout/base/nsCompatibility.h
index 4a6ef2404242..0717668ef1e3 100644
--- a/layout/base/nsCompatibility.h
+++ b/layout/base/nsCompatibility.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCounterManager.cpp b/layout/base/nsCounterManager.cpp
index 878c720187a5..36a1101297cb 100644
--- a/layout/base/nsCounterManager.cpp
+++ b/layout/base/nsCounterManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsCounterManager.h b/layout/base/nsCounterManager.h
index 1be448aaa372..0c74532126c8 100644
--- a/layout/base/nsCounterManager.h
+++ b/layout/base/nsCounterManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ai:sw=4:ts=4:et:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsDocumentViewer.cpp b/layout/base/nsDocumentViewer.cpp
index 4e14a1733ed6..4c6c3e1b98cb 100644
--- a/layout/base/nsDocumentViewer.cpp
+++ b/layout/base/nsDocumentViewer.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsFrameManager.cpp b/layout/base/nsFrameManager.cpp
index fe226c36165b..a8bf507a61fb 100644
--- a/layout/base/nsFrameManager.cpp
+++ b/layout/base/nsFrameManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsFrameManager.h b/layout/base/nsFrameManager.h
index e31e282d61b8..787d88d16d5b 100644
--- a/layout/base/nsFrameManager.h
+++ b/layout/base/nsFrameManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsFrameTraversal.cpp b/layout/base/nsFrameTraversal.cpp
index 37392f2f92dc..d7d2ab9a895b 100644
--- a/layout/base/nsFrameTraversal.cpp
+++ b/layout/base/nsFrameTraversal.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsFrameTraversal.h b/layout/base/nsFrameTraversal.h
index a61e81d65e58..f2878a85ea8d 100644
--- a/layout/base/nsFrameTraversal.h
+++ b/layout/base/nsFrameTraversal.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsGenConList.cpp b/layout/base/nsGenConList.cpp
index 13a7a0f5819a..48de0b884ecd 100644
--- a/layout/base/nsGenConList.cpp
+++ b/layout/base/nsGenConList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsGenConList.h b/layout/base/nsGenConList.h
index 26e597519108..9b658a2bd49e 100644
--- a/layout/base/nsGenConList.h
+++ b/layout/base/nsGenConList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsIDocumentViewerPrint.h b/layout/base/nsIDocumentViewerPrint.h
index b05b97d3c244..2caebc7d005e 100644
--- a/layout/base/nsIDocumentViewerPrint.h
+++ b/layout/base/nsIDocumentViewerPrint.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsILayoutHistoryState.idl b/layout/base/nsILayoutHistoryState.idl
index 5f6f587bc546..9ee0750ec1e9 100644
--- a/layout/base/nsILayoutHistoryState.idl
+++ b/layout/base/nsILayoutHistoryState.idl
@@ -1,4 +1,3 @@
-/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsIPercentBSizeObserver.h b/layout/base/nsIPercentBSizeObserver.h
index 8a21a91b3b83..fa98212f73f9 100644
--- a/layout/base/nsIPercentBSizeObserver.h
+++ b/layout/base/nsIPercentBSizeObserver.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsIReflowCallback.h b/layout/base/nsIReflowCallback.h
index 0d4738edda19..9e52df4029d0 100644
--- a/layout/base/nsIReflowCallback.h
+++ b/layout/base/nsIReflowCallback.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsISVGPaintContext.idl b/layout/base/nsISVGPaintContext.idl
index e8572c954168..0507355e5524 100644
--- a/layout/base/nsISVGPaintContext.idl
+++ b/layout/base/nsISVGPaintContext.idl
@@ -1,4 +1,3 @@
-/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsLayoutDebugger.cpp b/layout/base/nsLayoutDebugger.cpp
index 9b90f4943db7..0f0612cd5f61 100644
--- a/layout/base/nsLayoutDebugger.cpp
+++ b/layout/base/nsLayoutDebugger.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsLayoutHistoryState.cpp b/layout/base/nsLayoutHistoryState.cpp
index 45fdd6456d08..b1c650266f09 100644
--- a/layout/base/nsLayoutHistoryState.cpp
+++ b/layout/base/nsLayoutHistoryState.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp
index 11a5cf4330a5..51bed38cc2a2 100644
--- a/layout/base/nsLayoutUtils.cpp
+++ b/layout/base/nsLayoutUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsLayoutUtils.h b/layout/base/nsLayoutUtils.h
index c6e709b57749..89c0db03746a 100644
--- a/layout/base/nsLayoutUtils.h
+++ b/layout/base/nsLayoutUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsPresArena.cpp b/layout/base/nsPresArena.cpp
index bdc10dc9e666..10205fcaa73e 100644
--- a/layout/base/nsPresArena.cpp
+++ b/layout/base/nsPresArena.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/nsPresArena.h b/layout/base/nsPresArena.h
index b24c6d1de2bd..afac61434841 100644
--- a/layout/base/nsPresArena.h
+++ b/layout/base/nsPresArena.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/nsPresArenaObjectList.inc b/layout/base/nsPresArenaObjectList.inc
index 54c319d36b4f..a764c76b4f39 100644
--- a/layout/base/nsPresArenaObjectList.inc
+++ b/layout/base/nsPresArenaObjectList.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsPresContext.cpp b/layout/base/nsPresContext.cpp
index ad4348c9b13d..989e01eefa95 100644
--- a/layout/base/nsPresContext.cpp
+++ b/layout/base/nsPresContext.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsPresContext.h b/layout/base/nsPresContext.h
index 5cad0744601c..13aa7141c8e5 100644
--- a/layout/base/nsPresContext.h
+++ b/layout/base/nsPresContext.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsPresContextInlines.h b/layout/base/nsPresContextInlines.h
index 0f2867c25863..77017c4211b0 100644
--- a/layout/base/nsPresContextInlines.h
+++ b/layout/base/nsPresContextInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsQuoteList.cpp b/layout/base/nsQuoteList.cpp
index 6c586c838b21..f6baab51270f 100644
--- a/layout/base/nsQuoteList.cpp
+++ b/layout/base/nsQuoteList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsQuoteList.h b/layout/base/nsQuoteList.h
index 327c9626d651..fa5f933f7357 100644
--- a/layout/base/nsQuoteList.h
+++ b/layout/base/nsQuoteList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsRefreshDriver.cpp b/layout/base/nsRefreshDriver.cpp
index 629b34fd6410..d464687d8e0b 100644
--- a/layout/base/nsRefreshDriver.cpp
+++ b/layout/base/nsRefreshDriver.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsRefreshDriver.h b/layout/base/nsRefreshDriver.h
index 34c5b1a57271..adcd47f0a500 100644
--- a/layout/base/nsRefreshDriver.h
+++ b/layout/base/nsRefreshDriver.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsRefreshObservers.cpp b/layout/base/nsRefreshObservers.cpp
index 12f5a536d4a9..eda29b608922 100644
--- a/layout/base/nsRefreshObservers.cpp
+++ b/layout/base/nsRefreshObservers.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/nsRefreshObservers.h b/layout/base/nsRefreshObservers.h
index 707ddd1bcaaa..55aa3726a4d1 100644
--- a/layout/base/nsRefreshObservers.h
+++ b/layout/base/nsRefreshObservers.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/base/tests/browser_animatedImageLeak.js b/layout/base/tests/browser_animatedImageLeak.js
index 7e62ddead9c8..6bae2458b3a1 100644
--- a/layout/base/tests/browser_animatedImageLeak.js
+++ b/layout/base/tests/browser_animatedImageLeak.js
@@ -1,5 +1,3 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
 "use strict";
 
 requestLongerTimeout(4);
diff --git a/layout/base/tests/browser_test_oopif_reconstruct.js b/layout/base/tests/browser_test_oopif_reconstruct.js
index 2143bd1fdd3c..6df551c9ef6d 100644
--- a/layout/base/tests/browser_test_oopif_reconstruct.js
+++ b/layout/base/tests/browser_test_oopif_reconstruct.js
@@ -1,5 +1,3 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
 /* This test is based on
      https://searchfox.org/mozilla-central/rev/25d26b0a62cc5bb4aa3bb90a11f3b0b7c52859c4/gfx/layers/apz/test/mochitest/browser_test_position_sticky.js
 */
diff --git a/layout/base/tests/browser_test_tabpanels.js b/layout/base/tests/browser_test_tabpanels.js
index a828bf9e326c..892ccb0af2f5 100644
--- a/layout/base/tests/browser_test_tabpanels.js
+++ b/layout/base/tests/browser_test_tabpanels.js
@@ -1,5 +1,3 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
 /* This test is based on
      https://searchfox.org/mozilla-central/rev/380b8fd795e7d96d8a5a3e6ec2b50a9f2b65854a/layout/base/tests/browser_test_oopif_reconstruct.js
 */
diff --git a/layout/base/tests/marionette/selection.py b/layout/base/tests/marionette/selection.py
index dd391972fbf3..52866af42108 100644
--- a/layout/base/tests/marionette/selection.py
+++ b/layout/base/tests/marionette/selection.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/tests/marionette/test_accessiblecaret_cursor_mode.py b/layout/base/tests/marionette/test_accessiblecaret_cursor_mode.py
index 92917b1165de..6336c9e8aaa8 100644
--- a/layout/base/tests/marionette/test_accessiblecaret_cursor_mode.py
+++ b/layout/base/tests/marionette/test_accessiblecaret_cursor_mode.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/tests/marionette/test_accessiblecaret_selection_mode.py b/layout/base/tests/marionette/test_accessiblecaret_selection_mode.py
index 8dd47c3ba499..579dccfebee8 100644
--- a/layout/base/tests/marionette/test_accessiblecaret_selection_mode.py
+++ b/layout/base/tests/marionette/test_accessiblecaret_selection_mode.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/base/tests/selection-utils.js b/layout/base/tests/selection-utils.js
index 67db5139cadb..e3a3ddb87d84 100644
--- a/layout/base/tests/selection-utils.js
+++ b/layout/base/tests/selection-utils.js
@@ -1,5 +1,3 @@
-// -*- Mode: Javascript; tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*-
-// vim: set ts=2 sw=2 et tw=78:
 function clearSelection(w) {
   var sel = (w ? w : window).getSelection();
   sel.removeAllRanges();
diff --git a/layout/build/components.conf b/layout/build/components.conf
index dfd84fe61414..0a04a49f1a8a 100644
--- a/layout/build/components.conf
+++ b/layout/build/components.conf
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/build/moz.build b/layout/build/moz.build
index 46a185067c53..bf04989c24cb 100644
--- a/layout/build/moz.build
+++ b/layout/build/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/build/nsContentDLF.cpp b/layout/build/nsContentDLF.cpp
index 27d12b2a4a54..5c9f526fff01 100644
--- a/layout/build/nsContentDLF.cpp
+++ b/layout/build/nsContentDLF.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/build/nsContentDLF.h b/layout/build/nsContentDLF.h
index 2b8caeb3dc94..264cc638bc6b 100644
--- a/layout/build/nsContentDLF.h
+++ b/layout/build/nsContentDLF.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/build/nsLayoutModule.cpp b/layout/build/nsLayoutModule.cpp
index 65fe935b3e83..e3e936c72066 100644
--- a/layout/build/nsLayoutModule.cpp
+++ b/layout/build/nsLayoutModule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/build/nsLayoutModule.h b/layout/build/nsLayoutModule.h
index b335e28315fb..8100f6ef0f36 100644
--- a/layout/build/nsLayoutModule.h
+++ b/layout/build/nsLayoutModule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/build/nsLayoutStatics.cpp b/layout/build/nsLayoutStatics.cpp
index 018e5ff77313..8ba36b821f1b 100644
--- a/layout/build/nsLayoutStatics.cpp
+++ b/layout/build/nsLayoutStatics.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/build/nsLayoutStatics.h b/layout/build/nsLayoutStatics.h
index ce96f6b47802..52a696911b4a 100644
--- a/layout/build/nsLayoutStatics.h
+++ b/layout/build/nsLayoutStatics.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/docs/LayoutOverview.md b/layout/docs/LayoutOverview.md
index f4df66a4d75b..db1e2e70e613 100644
--- a/layout/docs/LayoutOverview.md
+++ b/layout/docs/LayoutOverview.md
@@ -1,5 +1,3 @@
-<!-- -*- mode: Markdown; fill-column: 72; -*- -->
-
 (layout-overview)=
 
 # Layout Overview
diff --git a/layout/docs/css-gap-decorations/Overview.bs b/layout/docs/css-gap-decorations/Overview.bs
index 982ec7dd3e25..ff3a0cc935c3 100644
--- a/layout/docs/css-gap-decorations/Overview.bs
+++ b/layout/docs/css-gap-decorations/Overview.bs
@@ -1,4 +1,3 @@
-<!-- -*- Mode: HTML; indent-tabs-mode: nil; sgml-basic-offset: 4 -*- -->
 <!--
      Any copyright is dedicated to the Public Domain.
      http://creativecommons.org/publicdomain/zero/1.0/
diff --git a/layout/forms/ButtonControlFrame.cpp b/layout/forms/ButtonControlFrame.cpp
index 0ec0526e2393..b2c3d83865a0 100644
--- a/layout/forms/ButtonControlFrame.cpp
+++ b/layout/forms/ButtonControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/ButtonControlFrame.h b/layout/forms/ButtonControlFrame.h
index c3fb7a3d565a..8bfb75c6ef57 100644
--- a/layout/forms/ButtonControlFrame.h
+++ b/layout/forms/ButtonControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/HTMLSelectEventListener.cpp b/layout/forms/HTMLSelectEventListener.cpp
index 27adc814e433..df9d05192fd1 100644
--- a/layout/forms/HTMLSelectEventListener.cpp
+++ b/layout/forms/HTMLSelectEventListener.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/HTMLSelectEventListener.h b/layout/forms/HTMLSelectEventListener.h
index c5af5f7687a9..a4f31a0b1d34 100644
--- a/layout/forms/HTMLSelectEventListener.h
+++ b/layout/forms/HTMLSelectEventListener.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/InputButtonControlFrame.cpp b/layout/forms/InputButtonControlFrame.cpp
index c41e3b838630..972505686bd6 100644
--- a/layout/forms/InputButtonControlFrame.cpp
+++ b/layout/forms/InputButtonControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/ListMutationObserver.cpp b/layout/forms/ListMutationObserver.cpp
index d2b9620da6d1..f44c2f6b4e73 100644
--- a/layout/forms/ListMutationObserver.cpp
+++ b/layout/forms/ListMutationObserver.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/ListMutationObserver.h b/layout/forms/ListMutationObserver.h
index 8c81077fb63a..a019c908d21b 100644
--- a/layout/forms/ListMutationObserver.h
+++ b/layout/forms/ListMutationObserver.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/moz.build b/layout/forms/moz.build
index 3428aad37b8a..9394242c503b 100644
--- a/layout/forms/moz.build
+++ b/layout/forms/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/forms/nsCheckboxRadioFrame.cpp b/layout/forms/nsCheckboxRadioFrame.cpp
index 1817005c6a37..f2bb876758e8 100644
--- a/layout/forms/nsCheckboxRadioFrame.cpp
+++ b/layout/forms/nsCheckboxRadioFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsCheckboxRadioFrame.h b/layout/forms/nsCheckboxRadioFrame.h
index d8e9b3dff498..002676e12855 100644
--- a/layout/forms/nsCheckboxRadioFrame.h
+++ b/layout/forms/nsCheckboxRadioFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsColorControlFrame.cpp b/layout/forms/nsColorControlFrame.cpp
index 2048b04e8137..f8918a23981a 100644
--- a/layout/forms/nsColorControlFrame.cpp
+++ b/layout/forms/nsColorControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsColorControlFrame.h b/layout/forms/nsColorControlFrame.h
index e34d6dd60eca..667e2caae1d8 100644
--- a/layout/forms/nsColorControlFrame.h
+++ b/layout/forms/nsColorControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsComboboxControlFrame.cpp b/layout/forms/nsComboboxControlFrame.cpp
index 6b6906a44cef..2df9ef48dd48 100644
--- a/layout/forms/nsComboboxControlFrame.cpp
+++ b/layout/forms/nsComboboxControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsComboboxControlFrame.h b/layout/forms/nsComboboxControlFrame.h
index e4c21d873a51..f5e6cf72ded1 100644
--- a/layout/forms/nsComboboxControlFrame.h
+++ b/layout/forms/nsComboboxControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsDateTimeControlFrame.cpp b/layout/forms/nsDateTimeControlFrame.cpp
index a012eba44411..067d9760d1c4 100644
--- a/layout/forms/nsDateTimeControlFrame.cpp
+++ b/layout/forms/nsDateTimeControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsDateTimeControlFrame.h b/layout/forms/nsDateTimeControlFrame.h
index 7078de662774..0dee2fc64bc3 100644
--- a/layout/forms/nsDateTimeControlFrame.h
+++ b/layout/forms/nsDateTimeControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsFieldSetFrame.cpp b/layout/forms/nsFieldSetFrame.cpp
index b505baceaced..00f349131e2b 100644
--- a/layout/forms/nsFieldSetFrame.cpp
+++ b/layout/forms/nsFieldSetFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsFieldSetFrame.h b/layout/forms/nsFieldSetFrame.h
index 206d270feeb2..95057af21072 100644
--- a/layout/forms/nsFieldSetFrame.h
+++ b/layout/forms/nsFieldSetFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsFileControlFrame.cpp b/layout/forms/nsFileControlFrame.cpp
index 8d8a65c6614d..b22bd9aca0a3 100644
--- a/layout/forms/nsFileControlFrame.cpp
+++ b/layout/forms/nsFileControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsFileControlFrame.h b/layout/forms/nsFileControlFrame.h
index 764346589213..2825ee230811 100644
--- a/layout/forms/nsFileControlFrame.h
+++ b/layout/forms/nsFileControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsImageControlFrame.cpp b/layout/forms/nsImageControlFrame.cpp
index 03e24342724b..1f2111a480ae 100644
--- a/layout/forms/nsImageControlFrame.cpp
+++ b/layout/forms/nsImageControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsListControlFrame.cpp b/layout/forms/nsListControlFrame.cpp
index 2986a90e8733..0722f91494df 100644
--- a/layout/forms/nsListControlFrame.cpp
+++ b/layout/forms/nsListControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsListControlFrame.h b/layout/forms/nsListControlFrame.h
index 935b1cb26af8..d88d46a8c5db 100644
--- a/layout/forms/nsListControlFrame.h
+++ b/layout/forms/nsListControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsProgressFrame.cpp b/layout/forms/nsProgressFrame.cpp
index 98cd6ecb2101..db6656570606 100644
--- a/layout/forms/nsProgressFrame.cpp
+++ b/layout/forms/nsProgressFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsProgressFrame.h b/layout/forms/nsProgressFrame.h
index bb6493924698..73c364b0fda7 100644
--- a/layout/forms/nsProgressFrame.h
+++ b/layout/forms/nsProgressFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsRangeFrame.cpp b/layout/forms/nsRangeFrame.cpp
index 3cb6dc93350d..8d28b9586efe 100644
--- a/layout/forms/nsRangeFrame.cpp
+++ b/layout/forms/nsRangeFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsRangeFrame.h b/layout/forms/nsRangeFrame.h
index 60349efee8aa..4f280f019d49 100644
--- a/layout/forms/nsRangeFrame.h
+++ b/layout/forms/nsRangeFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsTextControlFrame.cpp b/layout/forms/nsTextControlFrame.cpp
index b9b26cd334ef..0eb274898cfe 100644
--- a/layout/forms/nsTextControlFrame.cpp
+++ b/layout/forms/nsTextControlFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/forms/nsTextControlFrame.h b/layout/forms/nsTextControlFrame.h
index 53609b3972a8..af24162836f8 100644
--- a/layout/forms/nsTextControlFrame.h
+++ b/layout/forms/nsTextControlFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/AbsoluteContainingBlock.cpp b/layout/generic/AbsoluteContainingBlock.cpp
index 6a05b865e665..f228a7ff8f71 100644
--- a/layout/generic/AbsoluteContainingBlock.cpp
+++ b/layout/generic/AbsoluteContainingBlock.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/AbsoluteContainingBlock.h b/layout/generic/AbsoluteContainingBlock.h
index e7be8d992b6e..f5ba29b1add1 100644
--- a/layout/generic/AbsoluteContainingBlock.h
+++ b/layout/generic/AbsoluteContainingBlock.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/AnonymousContentKey.h b/layout/generic/AnonymousContentKey.h
index c0ff656dd0eb..39f67c7a0609 100644
--- a/layout/generic/AnonymousContentKey.h
+++ b/layout/generic/AnonymousContentKey.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/AspectRatio.cpp b/layout/generic/AspectRatio.cpp
index 0a8ef181e418..0c41e00c52ab 100644
--- a/layout/generic/AspectRatio.cpp
+++ b/layout/generic/AspectRatio.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/AspectRatio.h b/layout/generic/AspectRatio.h
index 00c4f3cb911c..f7b1acc87978 100644
--- a/layout/generic/AspectRatio.h
+++ b/layout/generic/AspectRatio.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/AutoCopyListener.h b/layout/generic/AutoCopyListener.h
index 638b6a835758..3277862dfdc5 100644
--- a/layout/generic/AutoCopyListener.h
+++ b/layout/generic/AutoCopyListener.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/BRFrame.cpp b/layout/generic/BRFrame.cpp
index d3b5d5964a92..22bbab16c0ee 100644
--- a/layout/generic/BRFrame.cpp
+++ b/layout/generic/BRFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/BlockReflowState.cpp b/layout/generic/BlockReflowState.cpp
index fe5b2299284d..7bc4b6add7c0 100644
--- a/layout/generic/BlockReflowState.cpp
+++ b/layout/generic/BlockReflowState.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/BlockReflowState.h b/layout/generic/BlockReflowState.h
index 903486a9e82c..522864fc8970 100644
--- a/layout/generic/BlockReflowState.h
+++ b/layout/generic/BlockReflowState.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/CSSAlignUtils.cpp b/layout/generic/CSSAlignUtils.cpp
index 98a8ad63b284..5cfc1714b43b 100644
--- a/layout/generic/CSSAlignUtils.cpp
+++ b/layout/generic/CSSAlignUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/CSSAlignUtils.h b/layout/generic/CSSAlignUtils.h
index 3f6cf712c9c7..d5a4cd83a720 100644
--- a/layout/generic/CSSAlignUtils.h
+++ b/layout/generic/CSSAlignUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/CSSOrderAwareFrameIterator.cpp b/layout/generic/CSSOrderAwareFrameIterator.cpp
index 225dc8e8adb2..5c205603e531 100644
--- a/layout/generic/CSSOrderAwareFrameIterator.cpp
+++ b/layout/generic/CSSOrderAwareFrameIterator.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/CSSOrderAwareFrameIterator.h b/layout/generic/CSSOrderAwareFrameIterator.h
index f641cacbc067..dde429cba38b 100644
--- a/layout/generic/CSSOrderAwareFrameIterator.h
+++ b/layout/generic/CSSOrderAwareFrameIterator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ColumnSetWrapperFrame.cpp b/layout/generic/ColumnSetWrapperFrame.cpp
index 264ef3a00e68..0c5ed3e461be 100644
--- a/layout/generic/ColumnSetWrapperFrame.cpp
+++ b/layout/generic/ColumnSetWrapperFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ColumnSetWrapperFrame.h b/layout/generic/ColumnSetWrapperFrame.h
index 2f5d37b8156b..3036ed9b19f8 100644
--- a/layout/generic/ColumnSetWrapperFrame.h
+++ b/layout/generic/ColumnSetWrapperFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ColumnUtils.cpp b/layout/generic/ColumnUtils.cpp
index 135364398e86..6a9ab0bae761 100644
--- a/layout/generic/ColumnUtils.cpp
+++ b/layout/generic/ColumnUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ColumnUtils.h b/layout/generic/ColumnUtils.h
index 15fa0efca51e..247562d36100 100644
--- a/layout/generic/ColumnUtils.h
+++ b/layout/generic/ColumnUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/IntrinsicISizesCache.h b/layout/generic/IntrinsicISizesCache.h
index a443c1201c09..766416ffe30f 100644
--- a/layout/generic/IntrinsicISizesCache.h
+++ b/layout/generic/IntrinsicISizesCache.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/JustificationUtils.h b/layout/generic/JustificationUtils.h
index c02f42761dd2..3af9b5b58d3b 100644
--- a/layout/generic/JustificationUtils.h
+++ b/layout/generic/JustificationUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/LayoutMessageUtils.h b/layout/generic/LayoutMessageUtils.h
index 57d7cc2998b1..3500137deb41 100644
--- a/layout/generic/LayoutMessageUtils.h
+++ b/layout/generic/LayoutMessageUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/MathMLTextRunFactory.cpp b/layout/generic/MathMLTextRunFactory.cpp
index 13c9cc5c1190..22adbaf9bc5b 100644
--- a/layout/generic/MathMLTextRunFactory.cpp
+++ b/layout/generic/MathMLTextRunFactory.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/MathMLTextRunFactory.h b/layout/generic/MathMLTextRunFactory.h
index 2be3223f9163..72f174ddaf27 100644
--- a/layout/generic/MathMLTextRunFactory.h
+++ b/layout/generic/MathMLTextRunFactory.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/MiddleCroppingBlockFrame.cpp b/layout/generic/MiddleCroppingBlockFrame.cpp
index f787968f50ab..52c359c7688c 100644
--- a/layout/generic/MiddleCroppingBlockFrame.cpp
+++ b/layout/generic/MiddleCroppingBlockFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/MiddleCroppingBlockFrame.h b/layout/generic/MiddleCroppingBlockFrame.h
index 9438b1753f4f..b2cae7bb7e6e 100644
--- a/layout/generic/MiddleCroppingBlockFrame.h
+++ b/layout/generic/MiddleCroppingBlockFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/PrintedSheetFrame.cpp b/layout/generic/PrintedSheetFrame.cpp
index 948d359f5948..cb22473b6ac2 100644
--- a/layout/generic/PrintedSheetFrame.cpp
+++ b/layout/generic/PrintedSheetFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/PrintedSheetFrame.h b/layout/generic/PrintedSheetFrame.h
index 6f7ffa974056..da37fd655c3b 100644
--- a/layout/generic/PrintedSheetFrame.h
+++ b/layout/generic/PrintedSheetFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ReflowInput.cpp b/layout/generic/ReflowInput.cpp
index b8465d1552c3..bf695dbfe904 100644
--- a/layout/generic/ReflowInput.cpp
+++ b/layout/generic/ReflowInput.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ReflowInput.h b/layout/generic/ReflowInput.h
index d4bb2d620690..246c69df8332 100644
--- a/layout/generic/ReflowInput.h
+++ b/layout/generic/ReflowInput.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ReflowOutput.cpp b/layout/generic/ReflowOutput.cpp
index aa8125426368..b76ed70727c6 100644
--- a/layout/generic/ReflowOutput.cpp
+++ b/layout/generic/ReflowOutput.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ReflowOutput.h b/layout/generic/ReflowOutput.h
index 2f9499f8af45..8e8f2719638b 100644
--- a/layout/generic/ReflowOutput.h
+++ b/layout/generic/ReflowOutput.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/RubyUtils.cpp b/layout/generic/RubyUtils.cpp
index c6e9449fda13..55d14a38cadc 100644
--- a/layout/generic/RubyUtils.cpp
+++ b/layout/generic/RubyUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/RubyUtils.h b/layout/generic/RubyUtils.h
index 0a556485b874..842dc8496141 100644
--- a/layout/generic/RubyUtils.h
+++ b/layout/generic/RubyUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnchorContainer.cpp b/layout/generic/ScrollAnchorContainer.cpp
index 1d17cdcfc1b4..bcd34fde0440 100644
--- a/layout/generic/ScrollAnchorContainer.cpp
+++ b/layout/generic/ScrollAnchorContainer.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnchorContainer.h b/layout/generic/ScrollAnchorContainer.h
index 2468cf1f2053..8559f0d70df5 100644
--- a/layout/generic/ScrollAnchorContainer.h
+++ b/layout/generic/ScrollAnchorContainer.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnimationBezierPhysics.cpp b/layout/generic/ScrollAnimationBezierPhysics.cpp
index c632b485a527..55376fe7f2a8 100644
--- a/layout/generic/ScrollAnimationBezierPhysics.cpp
+++ b/layout/generic/ScrollAnimationBezierPhysics.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnimationBezierPhysics.h b/layout/generic/ScrollAnimationBezierPhysics.h
index ec462d3e0c08..5fb8d5972f6c 100644
--- a/layout/generic/ScrollAnimationBezierPhysics.h
+++ b/layout/generic/ScrollAnimationBezierPhysics.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnimationMSDPhysics.cpp b/layout/generic/ScrollAnimationMSDPhysics.cpp
index b14bc1cfab71..fd2e9ecb7a40 100644
--- a/layout/generic/ScrollAnimationMSDPhysics.cpp
+++ b/layout/generic/ScrollAnimationMSDPhysics.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnimationMSDPhysics.h b/layout/generic/ScrollAnimationMSDPhysics.h
index a7f59a14f0f2..4f8f31138ddb 100644
--- a/layout/generic/ScrollAnimationMSDPhysics.h
+++ b/layout/generic/ScrollAnimationMSDPhysics.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollAnimationPhysics.h b/layout/generic/ScrollAnimationPhysics.h
index 49808ea7c837..a06e3f7bc0de 100644
--- a/layout/generic/ScrollAnimationPhysics.h
+++ b/layout/generic/ScrollAnimationPhysics.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollContainerFrame.cpp b/layout/generic/ScrollContainerFrame.cpp
index 74a4fd04ce96..406f0ee57ade 100644
--- a/layout/generic/ScrollContainerFrame.cpp
+++ b/layout/generic/ScrollContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollContainerFrame.h b/layout/generic/ScrollContainerFrame.h
index 28cb80d1c824..87844dbed1b0 100644
--- a/layout/generic/ScrollContainerFrame.h
+++ b/layout/generic/ScrollContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollSnap.cpp b/layout/generic/ScrollSnap.cpp
index 4489d7715de4..71ec84aa21d1 100644
--- a/layout/generic/ScrollSnap.cpp
+++ b/layout/generic/ScrollSnap.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollSnap.h b/layout/generic/ScrollSnap.h
index d16e786fd366..faf2dc4a1043 100644
--- a/layout/generic/ScrollSnap.h
+++ b/layout/generic/ScrollSnap.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollSnapInfo.cpp b/layout/generic/ScrollSnapInfo.cpp
index dd2260d2c348..f183dba89eef 100644
--- a/layout/generic/ScrollSnapInfo.cpp
+++ b/layout/generic/ScrollSnapInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollSnapInfo.h b/layout/generic/ScrollSnapInfo.h
index 47148c7221e2..8442ff45491d 100644
--- a/layout/generic/ScrollSnapInfo.h
+++ b/layout/generic/ScrollSnapInfo.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollVelocityQueue.cpp b/layout/generic/ScrollVelocityQueue.cpp
index 44a8ae003320..68288800189e 100644
--- a/layout/generic/ScrollVelocityQueue.cpp
+++ b/layout/generic/ScrollVelocityQueue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollVelocityQueue.h b/layout/generic/ScrollVelocityQueue.h
index 6b966c9e94c9..6276440f7b47 100644
--- a/layout/generic/ScrollVelocityQueue.h
+++ b/layout/generic/ScrollVelocityQueue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollbarActivity.cpp b/layout/generic/ScrollbarActivity.cpp
index 8abd04c09913..75b6850e61f5 100644
--- a/layout/generic/ScrollbarActivity.cpp
+++ b/layout/generic/ScrollbarActivity.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollbarActivity.h b/layout/generic/ScrollbarActivity.h
index 496ad02dd203..1b669aca7b0c 100644
--- a/layout/generic/ScrollbarActivity.h
+++ b/layout/generic/ScrollbarActivity.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ScrollbarPreferences.h b/layout/generic/ScrollbarPreferences.h
index 8fd05443e9e8..2d3a599f53b1 100644
--- a/layout/generic/ScrollbarPreferences.h
+++ b/layout/generic/ScrollbarPreferences.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/SelectionMovementUtils.cpp b/layout/generic/SelectionMovementUtils.cpp
index a14b838876e8..7d0ebf30a798 100644
--- a/layout/generic/SelectionMovementUtils.cpp
+++ b/layout/generic/SelectionMovementUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/SelectionMovementUtils.h b/layout/generic/SelectionMovementUtils.h
index f081654573b2..d661d74fc6b7 100644
--- a/layout/generic/SelectionMovementUtils.h
+++ b/layout/generic/SelectionMovementUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/StickyScrollContainer.cpp b/layout/generic/StickyScrollContainer.cpp
index 1a4ec3df37f9..db5d50f9018e 100644
--- a/layout/generic/StickyScrollContainer.cpp
+++ b/layout/generic/StickyScrollContainer.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/StickyScrollContainer.h b/layout/generic/StickyScrollContainer.h
index 643ca45eeca3..c105998f9134 100644
--- a/layout/generic/StickyScrollContainer.h
+++ b/layout/generic/StickyScrollContainer.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/TextDrawTarget.h b/layout/generic/TextDrawTarget.h
index 11c301eb5c07..b623f31ade3c 100644
--- a/layout/generic/TextDrawTarget.h
+++ b/layout/generic/TextDrawTarget.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/TextOverflow.cpp b/layout/generic/TextOverflow.cpp
index 3b4090f20929..d7a04cbc2721 100644
--- a/layout/generic/TextOverflow.cpp
+++ b/layout/generic/TextOverflow.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/TextOverflow.h b/layout/generic/TextOverflow.h
index 02f165ae6838..2f898473fa27 100644
--- a/layout/generic/TextOverflow.h
+++ b/layout/generic/TextOverflow.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ViewportFrame.cpp b/layout/generic/ViewportFrame.cpp
index 5d0e7765b510..d18c6392e2c7 100644
--- a/layout/generic/ViewportFrame.cpp
+++ b/layout/generic/ViewportFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/ViewportFrame.h b/layout/generic/ViewportFrame.h
index ee0b7c1334c5..7c54af94e1fd 100644
--- a/layout/generic/ViewportFrame.h
+++ b/layout/generic/ViewportFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/Visibility.h b/layout/generic/Visibility.h
index a5fbbdbde728..d8106585cfe5 100644
--- a/layout/generic/Visibility.h
+++ b/layout/generic/Visibility.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/WBRFrame.cpp b/layout/generic/WBRFrame.cpp
index 3ad733a2a4d3..93ad3341ee80 100644
--- a/layout/generic/WBRFrame.cpp
+++ b/layout/generic/WBRFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/WritingModes.h b/layout/generic/WritingModes.h
index 5332d169e374..add7af05fd48 100644
--- a/layout/generic/WritingModes.h
+++ b/layout/generic/WritingModes.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/moz.build b/layout/generic/moz.build
index 49f2d529d4e0..a0b95f0470cc 100644
--- a/layout/generic/moz.build
+++ b/layout/generic/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/generic/nsAtomicContainerFrame.h b/layout/generic/nsAtomicContainerFrame.h
index 9d4c240024b0..4f924c659e5b 100644
--- a/layout/generic/nsAtomicContainerFrame.h
+++ b/layout/generic/nsAtomicContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsBlockDebugFlags.h b/layout/generic/nsBlockDebugFlags.h
index 21b7b97f8e34..cba6c7e5a18b 100644
--- a/layout/generic/nsBlockDebugFlags.h
+++ b/layout/generic/nsBlockDebugFlags.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsBlockFrame.cpp b/layout/generic/nsBlockFrame.cpp
index 3aeff7c1cb7f..d144f475d872 100644
--- a/layout/generic/nsBlockFrame.cpp
+++ b/layout/generic/nsBlockFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsBlockFrame.h b/layout/generic/nsBlockFrame.h
index 06eb739a3824..246181ace670 100644
--- a/layout/generic/nsBlockFrame.h
+++ b/layout/generic/nsBlockFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsBlockReflowContext.cpp b/layout/generic/nsBlockReflowContext.cpp
index bd7b787d0356..9d3676817978 100644
--- a/layout/generic/nsBlockReflowContext.cpp
+++ b/layout/generic/nsBlockReflowContext.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsBlockReflowContext.h b/layout/generic/nsBlockReflowContext.h
index 75ccd1df660b..dd397ad0b47b 100644
--- a/layout/generic/nsBlockReflowContext.h
+++ b/layout/generic/nsBlockReflowContext.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsCanvasFrame.cpp b/layout/generic/nsCanvasFrame.cpp
index 724400e6c168..f2c2a411ef26 100644
--- a/layout/generic/nsCanvasFrame.cpp
+++ b/layout/generic/nsCanvasFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsCanvasFrame.h b/layout/generic/nsCanvasFrame.h
index f7b537300184..6db0aac28523 100644
--- a/layout/generic/nsCanvasFrame.h
+++ b/layout/generic/nsCanvasFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsColumnSetFrame.cpp b/layout/generic/nsColumnSetFrame.cpp
index 23a2991c0477..9bfdedb6f579 100644
--- a/layout/generic/nsColumnSetFrame.cpp
+++ b/layout/generic/nsColumnSetFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsColumnSetFrame.h b/layout/generic/nsColumnSetFrame.h
index f5f9259c748a..7f2d8b2cd9b5 100644
--- a/layout/generic/nsColumnSetFrame.h
+++ b/layout/generic/nsColumnSetFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsContainerFrame.cpp b/layout/generic/nsContainerFrame.cpp
index 8ec70dd5dc60..634cd0919144 100644
--- a/layout/generic/nsContainerFrame.cpp
+++ b/layout/generic/nsContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsContainerFrame.h b/layout/generic/nsContainerFrame.h
index c04262b502f6..b5531bfc388c 100644
--- a/layout/generic/nsContainerFrame.h
+++ b/layout/generic/nsContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsContainerFrameInlines.h b/layout/generic/nsContainerFrameInlines.h
index 65479dbb2abc..c67a1c8298bc 100644
--- a/layout/generic/nsContainerFrameInlines.h
+++ b/layout/generic/nsContainerFrameInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsDirection.h b/layout/generic/nsDirection.h
index 69dc8d01e621..2b803ada3fa6 100644
--- a/layout/generic/nsDirection.h
+++ b/layout/generic/nsDirection.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFirstLetterFrame.cpp b/layout/generic/nsFirstLetterFrame.cpp
index 2405d5b35df5..20e73f918025 100644
--- a/layout/generic/nsFirstLetterFrame.cpp
+++ b/layout/generic/nsFirstLetterFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFirstLetterFrame.h b/layout/generic/nsFirstLetterFrame.h
index ae498760592f..903462a28f4d 100644
--- a/layout/generic/nsFirstLetterFrame.h
+++ b/layout/generic/nsFirstLetterFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFlexContainerFrame.cpp b/layout/generic/nsFlexContainerFrame.cpp
index 5fb8f8132042..4f4bdfdd7beb 100644
--- a/layout/generic/nsFlexContainerFrame.cpp
+++ b/layout/generic/nsFlexContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFlexContainerFrame.h b/layout/generic/nsFlexContainerFrame.h
index 0dfa97ae2c55..b2167de0f2f5 100644
--- a/layout/generic/nsFlexContainerFrame.h
+++ b/layout/generic/nsFlexContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFloatManager.cpp b/layout/generic/nsFloatManager.cpp
index 728c1d6e8720..61fcf027b253 100644
--- a/layout/generic/nsFloatManager.cpp
+++ b/layout/generic/nsFloatManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFloatManager.h b/layout/generic/nsFloatManager.h
index 526679d7a5ad..edc820a75f2d 100644
--- a/layout/generic/nsFloatManager.h
+++ b/layout/generic/nsFloatManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFontInflationData.cpp b/layout/generic/nsFontInflationData.cpp
index 55c11229420c..a7b75502375f 100644
--- a/layout/generic/nsFontInflationData.cpp
+++ b/layout/generic/nsFontInflationData.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFontInflationData.h b/layout/generic/nsFontInflationData.h
index 80a422fe323d..0ac93ebde4aa 100644
--- a/layout/generic/nsFontInflationData.h
+++ b/layout/generic/nsFontInflationData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameList.cpp b/layout/generic/nsFrameList.cpp
index 128aab4ad8d1..114f3eae274d 100644
--- a/layout/generic/nsFrameList.cpp
+++ b/layout/generic/nsFrameList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameList.h b/layout/generic/nsFrameList.h
index a58ede9ac3c6..4b3a8f18980e 100644
--- a/layout/generic/nsFrameList.h
+++ b/layout/generic/nsFrameList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameSelection.cpp b/layout/generic/nsFrameSelection.cpp
index 4b94db9b1be9..bb9e5565b23a 100644
--- a/layout/generic/nsFrameSelection.cpp
+++ b/layout/generic/nsFrameSelection.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameSelection.h b/layout/generic/nsFrameSelection.h
index f91f1cd334d3..8f27b51b7f51 100644
--- a/layout/generic/nsFrameSelection.h
+++ b/layout/generic/nsFrameSelection.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameSetFrame.cpp b/layout/generic/nsFrameSetFrame.cpp
index 00da1f12784c..43db1cc190b4 100644
--- a/layout/generic/nsFrameSetFrame.cpp
+++ b/layout/generic/nsFrameSetFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameSetFrame.h b/layout/generic/nsFrameSetFrame.h
index 7f212a3cf2c0..23afc75b127f 100644
--- a/layout/generic/nsFrameSetFrame.h
+++ b/layout/generic/nsFrameSetFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameState.cpp b/layout/generic/nsFrameState.cpp
index 09160ceb532d..f6e706e20864 100644
--- a/layout/generic/nsFrameState.cpp
+++ b/layout/generic/nsFrameState.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameState.h b/layout/generic/nsFrameState.h
index 8411c3a115dc..f980215e2597 100644
--- a/layout/generic/nsFrameState.h
+++ b/layout/generic/nsFrameState.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsFrameStateBits.h b/layout/generic/nsFrameStateBits.h
index 3d66727f3347..884f5ee6c5a2 100644
--- a/layout/generic/nsFrameStateBits.h
+++ b/layout/generic/nsFrameStateBits.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsGridContainerFrame.cpp b/layout/generic/nsGridContainerFrame.cpp
index 4ab9312d56e6..1258802e45bd 100644
--- a/layout/generic/nsGridContainerFrame.cpp
+++ b/layout/generic/nsGridContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsGridContainerFrame.h b/layout/generic/nsGridContainerFrame.h
index 129be8a22167..5e53c148e226 100644
--- a/layout/generic/nsGridContainerFrame.h
+++ b/layout/generic/nsGridContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsHTMLCanvasFrame.cpp b/layout/generic/nsHTMLCanvasFrame.cpp
index 1e7f5c8e43b5..ce9ab4a984cc 100644
--- a/layout/generic/nsHTMLCanvasFrame.cpp
+++ b/layout/generic/nsHTMLCanvasFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsHTMLCanvasFrame.h b/layout/generic/nsHTMLCanvasFrame.h
index c1ee23746cb4..8e89aa34e4d2 100644
--- a/layout/generic/nsHTMLCanvasFrame.h
+++ b/layout/generic/nsHTMLCanvasFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsHTMLParts.h b/layout/generic/nsHTMLParts.h
index 3b6a34877de8..a4a9c4bbd110 100644
--- a/layout/generic/nsHTMLParts.h
+++ b/layout/generic/nsHTMLParts.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIAnonymousContentCreator.h b/layout/generic/nsIAnonymousContentCreator.h
index 57930e76b038..0bfa95c1ef85 100644
--- a/layout/generic/nsIAnonymousContentCreator.h
+++ b/layout/generic/nsIAnonymousContentCreator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIFrame.cpp b/layout/generic/nsIFrame.cpp
index b16b00d6f190..cd11d83b4725 100644
--- a/layout/generic/nsIFrame.cpp
+++ b/layout/generic/nsIFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIFrame.h b/layout/generic/nsIFrame.h
index 417fd131b7bb..cdb844002b88 100644
--- a/layout/generic/nsIFrame.h
+++ b/layout/generic/nsIFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIFrameInlines.h b/layout/generic/nsIFrameInlines.h
index 93856b8cc9ad..56d2e65ca8f4 100644
--- a/layout/generic/nsIFrameInlines.h
+++ b/layout/generic/nsIFrameInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsILineIterator.cpp b/layout/generic/nsILineIterator.cpp
index 2d7e21a9c1d9..235953147f71 100644
--- a/layout/generic/nsILineIterator.cpp
+++ b/layout/generic/nsILineIterator.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsILineIterator.h b/layout/generic/nsILineIterator.h
index dce979050880..cbbe4272af1e 100644
--- a/layout/generic/nsILineIterator.h
+++ b/layout/generic/nsILineIterator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIStatefulFrame.h b/layout/generic/nsIStatefulFrame.h
index 33a24e5e05d0..9635a6a6d8eb 100644
--- a/layout/generic/nsIStatefulFrame.h
+++ b/layout/generic/nsIStatefulFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsImageFrame.cpp b/layout/generic/nsImageFrame.cpp
index 4632ad61f9e1..28ecc57e913a 100644
--- a/layout/generic/nsImageFrame.cpp
+++ b/layout/generic/nsImageFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsImageFrame.h b/layout/generic/nsImageFrame.h
index 5655811e0113..ad885c6576b2 100644
--- a/layout/generic/nsImageFrame.h
+++ b/layout/generic/nsImageFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsImageMap.cpp b/layout/generic/nsImageMap.cpp
index 68065c7acd51..3b3aa7805ba7 100644
--- a/layout/generic/nsImageMap.cpp
+++ b/layout/generic/nsImageMap.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsImageMap.h b/layout/generic/nsImageMap.h
index f3e47ad8bb99..1acee46a1173 100644
--- a/layout/generic/nsImageMap.h
+++ b/layout/generic/nsImageMap.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsInlineFrame.cpp b/layout/generic/nsInlineFrame.cpp
index fbac5176513c..7664c3c68ab0 100644
--- a/layout/generic/nsInlineFrame.cpp
+++ b/layout/generic/nsInlineFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsInlineFrame.h b/layout/generic/nsInlineFrame.h
index 2fd214ff0273..377760546b7b 100644
--- a/layout/generic/nsInlineFrame.h
+++ b/layout/generic/nsInlineFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIntervalSet.cpp b/layout/generic/nsIntervalSet.cpp
index ef46f22a8d12..ed3b4a68fdb5 100644
--- a/layout/generic/nsIntervalSet.cpp
+++ b/layout/generic/nsIntervalSet.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=8:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsIntervalSet.h b/layout/generic/nsIntervalSet.h
index 2bd0fa510917..698c95cee432 100644
--- a/layout/generic/nsIntervalSet.h
+++ b/layout/generic/nsIntervalSet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=8:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsLeafFrame.cpp b/layout/generic/nsLeafFrame.cpp
index df4b8aff4922..19db80f1f250 100644
--- a/layout/generic/nsLeafFrame.cpp
+++ b/layout/generic/nsLeafFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsLeafFrame.h b/layout/generic/nsLeafFrame.h
index 13a8f4393910..bee0ee0a1606 100644
--- a/layout/generic/nsLeafFrame.h
+++ b/layout/generic/nsLeafFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsLineBox.cpp b/layout/generic/nsLineBox.cpp
index cf93b9e22a3e..30740bc8fe91 100644
--- a/layout/generic/nsLineBox.cpp
+++ b/layout/generic/nsLineBox.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsLineBox.h b/layout/generic/nsLineBox.h
index 5db28d43c0ff..790832ff27e8 100644
--- a/layout/generic/nsLineBox.h
+++ b/layout/generic/nsLineBox.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsLineLayout.cpp b/layout/generic/nsLineLayout.cpp
index eedfc748826b..ca7ead1b0242 100644
--- a/layout/generic/nsLineLayout.cpp
+++ b/layout/generic/nsLineLayout.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsLineLayout.h b/layout/generic/nsLineLayout.h
index 7715b7c83bee..f5722edd03fc 100644
--- a/layout/generic/nsLineLayout.h
+++ b/layout/generic/nsLineLayout.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPageContentFrame.cpp b/layout/generic/nsPageContentFrame.cpp
index 1e923de99dc4..d0dfd530833f 100644
--- a/layout/generic/nsPageContentFrame.cpp
+++ b/layout/generic/nsPageContentFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPageContentFrame.h b/layout/generic/nsPageContentFrame.h
index 7361215f68eb..158de7790481 100644
--- a/layout/generic/nsPageContentFrame.h
+++ b/layout/generic/nsPageContentFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPageFrame.cpp b/layout/generic/nsPageFrame.cpp
index a020c109eae7..3e2ce354a5e7 100644
--- a/layout/generic/nsPageFrame.cpp
+++ b/layout/generic/nsPageFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPageFrame.h b/layout/generic/nsPageFrame.h
index 9470660c1df0..07319c039c64 100644
--- a/layout/generic/nsPageFrame.h
+++ b/layout/generic/nsPageFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPageSequenceFrame.cpp b/layout/generic/nsPageSequenceFrame.cpp
index fa29dd9e4c67..a66c134f3a91 100644
--- a/layout/generic/nsPageSequenceFrame.cpp
+++ b/layout/generic/nsPageSequenceFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPageSequenceFrame.h b/layout/generic/nsPageSequenceFrame.h
index 20124da3d06d..d82a7250a84d 100644
--- a/layout/generic/nsPageSequenceFrame.h
+++ b/layout/generic/nsPageSequenceFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPlaceholderFrame.cpp b/layout/generic/nsPlaceholderFrame.cpp
index f1f8dbc180f5..d2539ad1fcaf 100644
--- a/layout/generic/nsPlaceholderFrame.cpp
+++ b/layout/generic/nsPlaceholderFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsPlaceholderFrame.h b/layout/generic/nsPlaceholderFrame.h
index abdb40301daa..e4f0150acb9f 100644
--- a/layout/generic/nsPlaceholderFrame.h
+++ b/layout/generic/nsPlaceholderFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsQueryFrame.h b/layout/generic/nsQueryFrame.h
index bd850d06e105..983ca4bfc463 100644
--- a/layout/generic/nsQueryFrame.h
+++ b/layout/generic/nsQueryFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyBaseContainerFrame.cpp b/layout/generic/nsRubyBaseContainerFrame.cpp
index 2ce7affaf9cb..cdaa0ae63e5c 100644
--- a/layout/generic/nsRubyBaseContainerFrame.cpp
+++ b/layout/generic/nsRubyBaseContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyBaseContainerFrame.h b/layout/generic/nsRubyBaseContainerFrame.h
index bc4bf40e1f8b..81f803903b3b 100644
--- a/layout/generic/nsRubyBaseContainerFrame.h
+++ b/layout/generic/nsRubyBaseContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyBaseFrame.cpp b/layout/generic/nsRubyBaseFrame.cpp
index 4350a43a282a..a327f0f323fc 100644
--- a/layout/generic/nsRubyBaseFrame.cpp
+++ b/layout/generic/nsRubyBaseFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyBaseFrame.h b/layout/generic/nsRubyBaseFrame.h
index 6d1151e2b543..73331ab798a9 100644
--- a/layout/generic/nsRubyBaseFrame.h
+++ b/layout/generic/nsRubyBaseFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyContentFrame.cpp b/layout/generic/nsRubyContentFrame.cpp
index efd7b820a50f..95dddac3f063 100644
--- a/layout/generic/nsRubyContentFrame.cpp
+++ b/layout/generic/nsRubyContentFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyContentFrame.h b/layout/generic/nsRubyContentFrame.h
index 29b53a2f4d6f..b415d9ec8dc7 100644
--- a/layout/generic/nsRubyContentFrame.h
+++ b/layout/generic/nsRubyContentFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyFrame.cpp b/layout/generic/nsRubyFrame.cpp
index 9586cc7918d2..042fe99fb10f 100644
--- a/layout/generic/nsRubyFrame.cpp
+++ b/layout/generic/nsRubyFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyFrame.h b/layout/generic/nsRubyFrame.h
index 12ee6995c63e..53a3d0e576f5 100644
--- a/layout/generic/nsRubyFrame.h
+++ b/layout/generic/nsRubyFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyTextContainerFrame.cpp b/layout/generic/nsRubyTextContainerFrame.cpp
index 82b0d478ccbd..0f939dbd6ee8 100644
--- a/layout/generic/nsRubyTextContainerFrame.cpp
+++ b/layout/generic/nsRubyTextContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyTextContainerFrame.h b/layout/generic/nsRubyTextContainerFrame.h
index dd96183b23a6..ecf810e12562 100644
--- a/layout/generic/nsRubyTextContainerFrame.h
+++ b/layout/generic/nsRubyTextContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyTextFrame.cpp b/layout/generic/nsRubyTextFrame.cpp
index cf112bf7f5f7..ede4176d7e54 100644
--- a/layout/generic/nsRubyTextFrame.cpp
+++ b/layout/generic/nsRubyTextFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsRubyTextFrame.h b/layout/generic/nsRubyTextFrame.h
index 5b8ae5cfa8e4..622ff6d93577 100644
--- a/layout/generic/nsRubyTextFrame.h
+++ b/layout/generic/nsRubyTextFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsSplittableFrame.cpp b/layout/generic/nsSplittableFrame.cpp
index 43633bc41dc8..c9266f9b48ca 100644
--- a/layout/generic/nsSplittableFrame.cpp
+++ b/layout/generic/nsSplittableFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsSplittableFrame.h b/layout/generic/nsSplittableFrame.h
index 4a74eca250a3..2ff1de021539 100644
--- a/layout/generic/nsSplittableFrame.h
+++ b/layout/generic/nsSplittableFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsSubDocumentFrame.cpp b/layout/generic/nsSubDocumentFrame.cpp
index 28cdb4a187bb..b93cb0765760 100644
--- a/layout/generic/nsSubDocumentFrame.cpp
+++ b/layout/generic/nsSubDocumentFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsSubDocumentFrame.h b/layout/generic/nsSubDocumentFrame.h
index 545b7123d962..f5f700ccf2c8 100644
--- a/layout/generic/nsSubDocumentFrame.h
+++ b/layout/generic/nsSubDocumentFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextFrame.cpp b/layout/generic/nsTextFrame.cpp
index b73ee68c284b..9224d7d67958 100644
--- a/layout/generic/nsTextFrame.cpp
+++ b/layout/generic/nsTextFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextFrame.h b/layout/generic/nsTextFrame.h
index 343fb8b50091..e2f3e4e176e9 100644
--- a/layout/generic/nsTextFrame.h
+++ b/layout/generic/nsTextFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextFrameUtils.cpp b/layout/generic/nsTextFrameUtils.cpp
index 97a793cbf579..2d9711d3de38 100644
--- a/layout/generic/nsTextFrameUtils.cpp
+++ b/layout/generic/nsTextFrameUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextFrameUtils.h b/layout/generic/nsTextFrameUtils.h
index 684be6a3d82d..1b58e3d0c5be 100644
--- a/layout/generic/nsTextFrameUtils.h
+++ b/layout/generic/nsTextFrameUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextPaintStyle.cpp b/layout/generic/nsTextPaintStyle.cpp
index 0fb29ff9a043..ee1899d2c2ec 100644
--- a/layout/generic/nsTextPaintStyle.cpp
+++ b/layout/generic/nsTextPaintStyle.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextPaintStyle.h b/layout/generic/nsTextPaintStyle.h
index 724848c53589..8098354fab1e 100644
--- a/layout/generic/nsTextPaintStyle.h
+++ b/layout/generic/nsTextPaintStyle.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextRunTransformations.cpp b/layout/generic/nsTextRunTransformations.cpp
index 77361564bf28..f950a3ab02af 100644
--- a/layout/generic/nsTextRunTransformations.cpp
+++ b/layout/generic/nsTextRunTransformations.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsTextRunTransformations.h b/layout/generic/nsTextRunTransformations.h
index 18a6b13b3bde..3170bd216da0 100644
--- a/layout/generic/nsTextRunTransformations.h
+++ b/layout/generic/nsTextRunTransformations.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsVideoFrame.cpp b/layout/generic/nsVideoFrame.cpp
index 9c2ca58a8943..4b21effee5ea 100644
--- a/layout/generic/nsVideoFrame.cpp
+++ b/layout/generic/nsVideoFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/generic/nsVideoFrame.h b/layout/generic/nsVideoFrame.h
index dd1a689a79d8..eabc54fbd134 100644
--- a/layout/generic/nsVideoFrame.h
+++ b/layout/generic/nsVideoFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/InspectorCSSParser.cpp b/layout/inspector/InspectorCSSParser.cpp
index bc9cbf1487eb..1ec9e319cbf3 100644
--- a/layout/inspector/InspectorCSSParser.cpp
+++ b/layout/inspector/InspectorCSSParser.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/InspectorCSSParser.h b/layout/inspector/InspectorCSSParser.h
index d41180298088..353fe3c29a4a 100644
--- a/layout/inspector/InspectorCSSParser.h
+++ b/layout/inspector/InspectorCSSParser.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/InspectorFontFace.cpp b/layout/inspector/InspectorFontFace.cpp
index b62cfad33629..7c6a6db59b8f 100644
--- a/layout/inspector/InspectorFontFace.cpp
+++ b/layout/inspector/InspectorFontFace.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/InspectorFontFace.h b/layout/inspector/InspectorFontFace.h
index e02758f1e3f6..cf9ec9f7c4a9 100644
--- a/layout/inspector/InspectorFontFace.h
+++ b/layout/inspector/InspectorFontFace.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/InspectorUtils.cpp b/layout/inspector/InspectorUtils.cpp
index 4bed25f1281e..ca58698fe111 100644
--- a/layout/inspector/InspectorUtils.cpp
+++ b/layout/inspector/InspectorUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/InspectorUtils.h b/layout/inspector/InspectorUtils.h
index b404421b2a5c..e5d0457b3b5d 100644
--- a/layout/inspector/InspectorUtils.h
+++ b/layout/inspector/InspectorUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/inspector/ServoStyleRuleMap.cpp b/layout/inspector/ServoStyleRuleMap.cpp
index c68d99f5eae1..137c57e98e87 100644
--- a/layout/inspector/ServoStyleRuleMap.cpp
+++ b/layout/inspector/ServoStyleRuleMap.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/ServoStyleRuleMap.h b/layout/inspector/ServoStyleRuleMap.h
index 7be6683bbc9a..a19d9aba13a6 100644
--- a/layout/inspector/ServoStyleRuleMap.h
+++ b/layout/inspector/ServoStyleRuleMap.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/inDeepTreeWalker.cpp b/layout/inspector/inDeepTreeWalker.cpp
index fdcb812f394f..151b9f6c462e 100644
--- a/layout/inspector/inDeepTreeWalker.cpp
+++ b/layout/inspector/inDeepTreeWalker.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/inDeepTreeWalker.h b/layout/inspector/inDeepTreeWalker.h
index 0f51697e1a6b..364b441e283e 100644
--- a/layout/inspector/inDeepTreeWalker.h
+++ b/layout/inspector/inDeepTreeWalker.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/inLayoutUtils.cpp b/layout/inspector/inLayoutUtils.cpp
index a0a9ac4d5d16..8943d3e47019 100644
--- a/layout/inspector/inLayoutUtils.cpp
+++ b/layout/inspector/inLayoutUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/inLayoutUtils.h b/layout/inspector/inLayoutUtils.h
index cbea4c72f9b2..27d58188113e 100644
--- a/layout/inspector/inLayoutUtils.h
+++ b/layout/inspector/inLayoutUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/inspector/moz.build b/layout/inspector/moz.build
index a90b9c7abfca..56650579d1b3 100644
--- a/layout/inspector/moz.build
+++ b/layout/inspector/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/inspector/tests/chrome/test_bug727834.css b/layout/inspector/tests/chrome/test_bug727834.css
index f21f7a54c229..f675bc3f4262 100644
--- a/layout/inspector/tests/chrome/test_bug727834.css
+++ b/layout/inspector/tests/chrome/test_bug727834.css
@@ -1,4 +1,3 @@
-/* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
diff --git a/layout/ipc/RemoteLayerTreeOwner.cpp b/layout/ipc/RemoteLayerTreeOwner.cpp
index 0874c9496964..33f0b073e093 100644
--- a/layout/ipc/RemoteLayerTreeOwner.cpp
+++ b/layout/ipc/RemoteLayerTreeOwner.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/ipc/RemoteLayerTreeOwner.h b/layout/ipc/RemoteLayerTreeOwner.h
index eb0f124b981c..82dd1feb1c80 100644
--- a/layout/ipc/RemoteLayerTreeOwner.h
+++ b/layout/ipc/RemoteLayerTreeOwner.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/ipc/moz.build b/layout/ipc/moz.build
index fcb6b477b132..22a52e9580c6 100644
--- a/layout/ipc/moz.build
+++ b/layout/ipc/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/mathml/moz.build b/layout/mathml/moz.build
index 3ad3f1e35c88..9f5d6f8938bc 100644
--- a/layout/mathml/moz.build
+++ b/layout/mathml/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/mathml/nsIMathMLFrame.h b/layout/mathml/nsIMathMLFrame.h
index faf120e171ac..d24ce251dca3 100644
--- a/layout/mathml/nsIMathMLFrame.h
+++ b/layout/mathml/nsIMathMLFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLAtoms.h b/layout/mathml/nsMathMLAtoms.h
index 01d98025343a..d8c1acd42f4f 100644
--- a/layout/mathml/nsMathMLAtoms.h
+++ b/layout/mathml/nsMathMLAtoms.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLChar.cpp b/layout/mathml/nsMathMLChar.cpp
index fb1da0bfad41..78c7876a96da 100644
--- a/layout/mathml/nsMathMLChar.cpp
+++ b/layout/mathml/nsMathMLChar.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLChar.h b/layout/mathml/nsMathMLChar.h
index 58985d1dec3c..6fb3a15f8878 100644
--- a/layout/mathml/nsMathMLChar.h
+++ b/layout/mathml/nsMathMLChar.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLContainerFrame.cpp b/layout/mathml/nsMathMLContainerFrame.cpp
index eaec90d31af5..4628138de498 100644
--- a/layout/mathml/nsMathMLContainerFrame.cpp
+++ b/layout/mathml/nsMathMLContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLContainerFrame.h b/layout/mathml/nsMathMLContainerFrame.h
index 638ee74c52a7..c1ccdc49b3ad 100644
--- a/layout/mathml/nsMathMLContainerFrame.h
+++ b/layout/mathml/nsMathMLContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLFrame.cpp b/layout/mathml/nsMathMLFrame.cpp
index 12ebd45fbb9b..da1350d5ada8 100644
--- a/layout/mathml/nsMathMLFrame.cpp
+++ b/layout/mathml/nsMathMLFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLFrame.h b/layout/mathml/nsMathMLFrame.h
index 417073574637..087681d852c4 100644
--- a/layout/mathml/nsMathMLFrame.h
+++ b/layout/mathml/nsMathMLFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLOperators.cpp b/layout/mathml/nsMathMLOperators.cpp
index 9de5bbc7225e..79cde2f78406 100644
--- a/layout/mathml/nsMathMLOperators.cpp
+++ b/layout/mathml/nsMathMLOperators.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLOperators.h b/layout/mathml/nsMathMLOperators.h
index c827d4c70dc6..c44d6d8b8439 100644
--- a/layout/mathml/nsMathMLOperators.h
+++ b/layout/mathml/nsMathMLOperators.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLParts.h b/layout/mathml/nsMathMLParts.h
index 3ef260a340d7..a311aa79bb2c 100644
--- a/layout/mathml/nsMathMLParts.h
+++ b/layout/mathml/nsMathMLParts.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLTokenFrame.cpp b/layout/mathml/nsMathMLTokenFrame.cpp
index 1baf3e5ec905..f5dee7f80b89 100644
--- a/layout/mathml/nsMathMLTokenFrame.cpp
+++ b/layout/mathml/nsMathMLTokenFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLTokenFrame.h b/layout/mathml/nsMathMLTokenFrame.h
index 64874ad6f45f..b92921553f9b 100644
--- a/layout/mathml/nsMathMLTokenFrame.h
+++ b/layout/mathml/nsMathMLTokenFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmencloseFrame.cpp b/layout/mathml/nsMathMLmencloseFrame.cpp
index 8cd7c9d8dcc6..244340e6c9ac 100644
--- a/layout/mathml/nsMathMLmencloseFrame.cpp
+++ b/layout/mathml/nsMathMLmencloseFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmencloseFrame.h b/layout/mathml/nsMathMLmencloseFrame.h
index f6dedc9dff22..dc315947c63f 100644
--- a/layout/mathml/nsMathMLmencloseFrame.h
+++ b/layout/mathml/nsMathMLmencloseFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmfracFrame.cpp b/layout/mathml/nsMathMLmfracFrame.cpp
index 480fa68596f1..3e29dd35717d 100644
--- a/layout/mathml/nsMathMLmfracFrame.cpp
+++ b/layout/mathml/nsMathMLmfracFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmfracFrame.h b/layout/mathml/nsMathMLmfracFrame.h
index d7624bb5bc0c..b4d05f796c41 100644
--- a/layout/mathml/nsMathMLmfracFrame.h
+++ b/layout/mathml/nsMathMLmfracFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmmultiscriptsFrame.cpp b/layout/mathml/nsMathMLmmultiscriptsFrame.cpp
index fa2a47997ddb..76e87190ba56 100644
--- a/layout/mathml/nsMathMLmmultiscriptsFrame.cpp
+++ b/layout/mathml/nsMathMLmmultiscriptsFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmmultiscriptsFrame.h b/layout/mathml/nsMathMLmmultiscriptsFrame.h
index d8cdd088c240..35db8c7d2794 100644
--- a/layout/mathml/nsMathMLmmultiscriptsFrame.h
+++ b/layout/mathml/nsMathMLmmultiscriptsFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmoFrame.cpp b/layout/mathml/nsMathMLmoFrame.cpp
index 1505a581f6c0..fa3f0e16978e 100644
--- a/layout/mathml/nsMathMLmoFrame.cpp
+++ b/layout/mathml/nsMathMLmoFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmoFrame.h b/layout/mathml/nsMathMLmoFrame.h
index d1fc190c7f8e..534f26aae813 100644
--- a/layout/mathml/nsMathMLmoFrame.h
+++ b/layout/mathml/nsMathMLmoFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmpaddedFrame.cpp b/layout/mathml/nsMathMLmpaddedFrame.cpp
index 8080526f654b..575008100e1e 100644
--- a/layout/mathml/nsMathMLmpaddedFrame.cpp
+++ b/layout/mathml/nsMathMLmpaddedFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmpaddedFrame.h b/layout/mathml/nsMathMLmpaddedFrame.h
index 4732bcf48caa..5ec9c9ddd9ee 100644
--- a/layout/mathml/nsMathMLmpaddedFrame.h
+++ b/layout/mathml/nsMathMLmpaddedFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmrootFrame.cpp b/layout/mathml/nsMathMLmrootFrame.cpp
index 558db4d7e55b..629a63ef350a 100644
--- a/layout/mathml/nsMathMLmrootFrame.cpp
+++ b/layout/mathml/nsMathMLmrootFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmrootFrame.h b/layout/mathml/nsMathMLmrootFrame.h
index 13f06e2ee450..a48a046a244f 100644
--- a/layout/mathml/nsMathMLmrootFrame.h
+++ b/layout/mathml/nsMathMLmrootFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmrowFrame.cpp b/layout/mathml/nsMathMLmrowFrame.cpp
index 9e3d75eec8aa..bc36ad6ee588 100644
--- a/layout/mathml/nsMathMLmrowFrame.cpp
+++ b/layout/mathml/nsMathMLmrowFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmrowFrame.h b/layout/mathml/nsMathMLmrowFrame.h
index 0aa10a20ad3f..5ea0988074d3 100644
--- a/layout/mathml/nsMathMLmrowFrame.h
+++ b/layout/mathml/nsMathMLmrowFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmspaceFrame.cpp b/layout/mathml/nsMathMLmspaceFrame.cpp
index 7db1d64935a7..10511bbaea68 100644
--- a/layout/mathml/nsMathMLmspaceFrame.cpp
+++ b/layout/mathml/nsMathMLmspaceFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmspaceFrame.h b/layout/mathml/nsMathMLmspaceFrame.h
index 24b0bb8d7e06..53d1840cf243 100644
--- a/layout/mathml/nsMathMLmspaceFrame.h
+++ b/layout/mathml/nsMathMLmspaceFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmtableFrame.cpp b/layout/mathml/nsMathMLmtableFrame.cpp
index e8ec18370fd3..74c901aa0010 100644
--- a/layout/mathml/nsMathMLmtableFrame.cpp
+++ b/layout/mathml/nsMathMLmtableFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmtableFrame.h b/layout/mathml/nsMathMLmtableFrame.h
index aa81b20805ba..d6aeff13036a 100644
--- a/layout/mathml/nsMathMLmtableFrame.h
+++ b/layout/mathml/nsMathMLmtableFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmunderoverFrame.cpp b/layout/mathml/nsMathMLmunderoverFrame.cpp
index ad343052430f..b77e8fdf1e2a 100644
--- a/layout/mathml/nsMathMLmunderoverFrame.cpp
+++ b/layout/mathml/nsMathMLmunderoverFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/nsMathMLmunderoverFrame.h b/layout/mathml/nsMathMLmunderoverFrame.h
index 37ab1b061096..38b79d8d758d 100644
--- a/layout/mathml/nsMathMLmunderoverFrame.h
+++ b/layout/mathml/nsMathMLmunderoverFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/mathml/operatorDictionary.xsl b/layout/mathml/operatorDictionary.xsl
index 257a063330e3..5608028c7866 100644
--- a/layout/mathml/operatorDictionary.xsl
+++ b/layout/mathml/operatorDictionary.xsl
@@ -1,4 +1,3 @@
-<!-- -*- Mode: nXML; tab-width: 2; indent-tabs-mode: nil; -*- -->
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/layout/mathml/updateOperatorDictionary.pl b/layout/mathml/updateOperatorDictionary.pl
index 01fc4d0a88fa..73ced79943c3 100755
--- a/layout/mathml/updateOperatorDictionary.pl
+++ b/layout/mathml/updateOperatorDictionary.pl
@@ -1,5 +1,4 @@
 #!/usr/bin/perl
-# -*- Mode: Perl; tab-width: 2; indent-tabs-mode: nil; -*-
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/moz.build b/layout/moz.build
index 202f1e5575fe..2d29e0cf00d2 100644
--- a/layout/moz.build
+++ b/layout/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/painting/ActiveLayerTracker.cpp b/layout/painting/ActiveLayerTracker.cpp
index f08302947452..aa6e83478e44 100644
--- a/layout/painting/ActiveLayerTracker.cpp
+++ b/layout/painting/ActiveLayerTracker.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/ActiveLayerTracker.h b/layout/painting/ActiveLayerTracker.h
index cfee636582d1..88d32929dd54 100644
--- a/layout/painting/ActiveLayerTracker.h
+++ b/layout/painting/ActiveLayerTracker.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/BorderCache.h b/layout/painting/BorderCache.h
index 6d7933c30f17..4786b59e8332 100644
--- a/layout/painting/BorderCache.h
+++ b/layout/painting/BorderCache.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/BorderConsts.h b/layout/painting/BorderConsts.h
index e25c69710188..3dfd39c55306 100644
--- a/layout/painting/BorderConsts.h
+++ b/layout/painting/BorderConsts.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DashedCornerFinder.cpp b/layout/painting/DashedCornerFinder.cpp
index b91c3b2f09ed..14cac87d43bd 100644
--- a/layout/painting/DashedCornerFinder.cpp
+++ b/layout/painting/DashedCornerFinder.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DashedCornerFinder.h b/layout/painting/DashedCornerFinder.h
index 3a409d19f70e..373f7b962ece 100644
--- a/layout/painting/DashedCornerFinder.h
+++ b/layout/painting/DashedCornerFinder.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DisplayItemClip.cpp b/layout/painting/DisplayItemClip.cpp
index 99884762dca1..b182e257b7ff 100644
--- a/layout/painting/DisplayItemClip.cpp
+++ b/layout/painting/DisplayItemClip.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DisplayItemClip.h b/layout/painting/DisplayItemClip.h
index e080a407abd9..9e9b394fc20b 100644
--- a/layout/painting/DisplayItemClip.h
+++ b/layout/painting/DisplayItemClip.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DisplayItemClipChain.cpp b/layout/painting/DisplayItemClipChain.cpp
index 29c64c742098..a6945ea97b14 100644
--- a/layout/painting/DisplayItemClipChain.cpp
+++ b/layout/painting/DisplayItemClipChain.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DisplayItemClipChain.h b/layout/painting/DisplayItemClipChain.h
index 513e7dde91ae..1c9fbac6d76c 100644
--- a/layout/painting/DisplayItemClipChain.h
+++ b/layout/painting/DisplayItemClipChain.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DisplayListClipState.cpp b/layout/painting/DisplayListClipState.cpp
index 44c5c672adcc..ff3b8b42d5b4 100644
--- a/layout/painting/DisplayListClipState.cpp
+++ b/layout/painting/DisplayListClipState.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DisplayListClipState.h b/layout/painting/DisplayListClipState.h
index 7f5aec3450c4..5e1a8930b527 100644
--- a/layout/painting/DisplayListClipState.h
+++ b/layout/painting/DisplayListClipState.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DottedCornerFinder.cpp b/layout/painting/DottedCornerFinder.cpp
index 4c9411e86607..733359e10048 100644
--- a/layout/painting/DottedCornerFinder.cpp
+++ b/layout/painting/DottedCornerFinder.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/DottedCornerFinder.h b/layout/painting/DottedCornerFinder.h
index eacd220736db..1adc564cb84b 100644
--- a/layout/painting/DottedCornerFinder.h
+++ b/layout/painting/DottedCornerFinder.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/HitTestInfo.cpp b/layout/painting/HitTestInfo.cpp
index 53372139a8f5..6b833c240ab3 100644
--- a/layout/painting/HitTestInfo.cpp
+++ b/layout/painting/HitTestInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/HitTestInfo.h b/layout/painting/HitTestInfo.h
index 95438b810ce1..74f74e246d7d 100644
--- a/layout/painting/HitTestInfo.h
+++ b/layout/painting/HitTestInfo.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/MatrixStack.h b/layout/painting/MatrixStack.h
index d72d25a22e63..6fd8296e9792 100644
--- a/layout/painting/MatrixStack.h
+++ b/layout/painting/MatrixStack.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/RetainedDisplayListBuilder.cpp b/layout/painting/RetainedDisplayListBuilder.cpp
index 8d58353aef4a..e195d9f769e2 100644
--- a/layout/painting/RetainedDisplayListBuilder.cpp
+++ b/layout/painting/RetainedDisplayListBuilder.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/painting/RetainedDisplayListBuilder.h b/layout/painting/RetainedDisplayListBuilder.h
index 1aeea439cd6b..706f47eb001f 100644
--- a/layout/painting/RetainedDisplayListBuilder.h
+++ b/layout/painting/RetainedDisplayListBuilder.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/RetainedDisplayListHelpers.h b/layout/painting/RetainedDisplayListHelpers.h
index bf5e729a100d..ef17740d584c 100644
--- a/layout/painting/RetainedDisplayListHelpers.h
+++ b/layout/painting/RetainedDisplayListHelpers.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/TransformClipNode.h b/layout/painting/TransformClipNode.h
index 0fde77678309..b022321c0362 100644
--- a/layout/painting/TransformClipNode.h
+++ b/layout/painting/TransformClipNode.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/WindowRenderer.cpp b/layout/painting/WindowRenderer.cpp
index 1e0c81a51d58..f25c65e0ec5b 100644
--- a/layout/painting/WindowRenderer.cpp
+++ b/layout/painting/WindowRenderer.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/WindowRenderer.h b/layout/painting/WindowRenderer.h
index 0334f318a9d2..a4d932bf8a5f 100644
--- a/layout/painting/WindowRenderer.h
+++ b/layout/painting/WindowRenderer.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/moz.build b/layout/painting/moz.build
index dbc352b9a08b..958a75c0f38d 100644
--- a/layout/painting/moz.build
+++ b/layout/painting/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/painting/nsCSSRendering.cpp b/layout/painting/nsCSSRendering.cpp
index c85288ffa156..b24d5f33fdc7 100644
--- a/layout/painting/nsCSSRendering.cpp
+++ b/layout/painting/nsCSSRendering.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsCSSRendering.h b/layout/painting/nsCSSRendering.h
index 6e74c30ab09f..ac35243ceb30 100644
--- a/layout/painting/nsCSSRendering.h
+++ b/layout/painting/nsCSSRendering.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsCSSRenderingBorders.cpp b/layout/painting/nsCSSRenderingBorders.cpp
index d30a9f26ad44..9238732fcc48 100644
--- a/layout/painting/nsCSSRenderingBorders.cpp
+++ b/layout/painting/nsCSSRenderingBorders.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsCSSRenderingBorders.h b/layout/painting/nsCSSRenderingBorders.h
index ca2aa115d176..15157edd6e56 100644
--- a/layout/painting/nsCSSRenderingBorders.h
+++ b/layout/painting/nsCSSRenderingBorders.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsCSSRenderingGradients.cpp b/layout/painting/nsCSSRenderingGradients.cpp
index 945af00edaca..80a9d36ca865 100644
--- a/layout/painting/nsCSSRenderingGradients.cpp
+++ b/layout/painting/nsCSSRenderingGradients.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsCSSRenderingGradients.h b/layout/painting/nsCSSRenderingGradients.h
index cb1c5e0d95ea..30f665f7caca 100644
--- a/layout/painting/nsCSSRenderingGradients.h
+++ b/layout/painting/nsCSSRenderingGradients.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsDisplayItemTypes.h b/layout/painting/nsDisplayItemTypes.h
index c0c578daf2cb..162bc1a666fd 100644
--- a/layout/painting/nsDisplayItemTypes.h
+++ b/layout/painting/nsDisplayItemTypes.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/painting/nsDisplayItemTypesList.inc b/layout/painting/nsDisplayItemTypesList.inc
index d7464949e3ca..d6e11a889c4d 100644
--- a/layout/painting/nsDisplayItemTypesList.inc
+++ b/layout/painting/nsDisplayItemTypesList.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsDisplayList.cpp b/layout/painting/nsDisplayList.cpp
index b53df5ad4b0b..bd604808d38f 100644
--- a/layout/painting/nsDisplayList.cpp
+++ b/layout/painting/nsDisplayList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/painting/nsDisplayList.h b/layout/painting/nsDisplayList.h
index 84eb89049ea3..ba0cb65ff255 100644
--- a/layout/painting/nsDisplayList.h
+++ b/layout/painting/nsDisplayList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/painting/nsDisplayListArenaTypes.inc b/layout/painting/nsDisplayListArenaTypes.inc
index 7c1e127c6af6..a61cb0aefb20 100644
--- a/layout/painting/nsDisplayListArenaTypes.inc
+++ b/layout/painting/nsDisplayListArenaTypes.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsDisplayListInvalidation.cpp b/layout/painting/nsDisplayListInvalidation.cpp
index a5ce7631ea36..5467727c821f 100644
--- a/layout/painting/nsDisplayListInvalidation.cpp
+++ b/layout/painting/nsDisplayListInvalidation.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsDisplayListInvalidation.h b/layout/painting/nsDisplayListInvalidation.h
index 89470acd15e8..4a0db90f575c 100644
--- a/layout/painting/nsDisplayListInvalidation.h
+++ b/layout/painting/nsDisplayListInvalidation.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsImageRenderer.cpp b/layout/painting/nsImageRenderer.cpp
index 019210c89f00..4acb7670e971 100644
--- a/layout/painting/nsImageRenderer.cpp
+++ b/layout/painting/nsImageRenderer.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/painting/nsImageRenderer.h b/layout/painting/nsImageRenderer.h
index 9c9e26766ac5..b03575efacc9 100644
--- a/layout/painting/nsImageRenderer.h
+++ b/layout/painting/nsImageRenderer.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/DrawEventRecorder.cpp b/layout/printing/DrawEventRecorder.cpp
index 69b9b48ae6f2..603470b989f4 100644
--- a/layout/printing/DrawEventRecorder.cpp
+++ b/layout/printing/DrawEventRecorder.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/DrawEventRecorder.h b/layout/printing/DrawEventRecorder.h
index 9c3a3db43d49..a5ce359cde1c 100644
--- a/layout/printing/DrawEventRecorder.h
+++ b/layout/printing/DrawEventRecorder.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/PrintTranslator.cpp b/layout/printing/PrintTranslator.cpp
index b51fbd612c7c..6cdf3da5c0c7 100644
--- a/layout/printing/PrintTranslator.cpp
+++ b/layout/printing/PrintTranslator.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/PrintTranslator.h b/layout/printing/PrintTranslator.h
index bd46ab086f97..ad3ed2bb7f00 100644
--- a/layout/printing/PrintTranslator.h
+++ b/layout/printing/PrintTranslator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/ipc/PRemotePrintJob.ipdl b/layout/printing/ipc/PRemotePrintJob.ipdl
index 50b978cfc778..cfb983a8217d 100644
--- a/layout/printing/ipc/PRemotePrintJob.ipdl
+++ b/layout/printing/ipc/PRemotePrintJob.ipdl
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/ipc/RemotePrintJobChild.cpp b/layout/printing/ipc/RemotePrintJobChild.cpp
index 34f2db2279a4..52bf1ddddc63 100644
--- a/layout/printing/ipc/RemotePrintJobChild.cpp
+++ b/layout/printing/ipc/RemotePrintJobChild.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/ipc/RemotePrintJobChild.h b/layout/printing/ipc/RemotePrintJobChild.h
index f9f80ba1e6bb..3d7c483a9e9e 100644
--- a/layout/printing/ipc/RemotePrintJobChild.h
+++ b/layout/printing/ipc/RemotePrintJobChild.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/ipc/RemotePrintJobParent.cpp b/layout/printing/ipc/RemotePrintJobParent.cpp
index 5ffaed9da741..acaf29ad5359 100644
--- a/layout/printing/ipc/RemotePrintJobParent.cpp
+++ b/layout/printing/ipc/RemotePrintJobParent.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/ipc/RemotePrintJobParent.h b/layout/printing/ipc/RemotePrintJobParent.h
index 77e97eedfd06..2ac1c662f55a 100644
--- a/layout/printing/ipc/RemotePrintJobParent.h
+++ b/layout/printing/ipc/RemotePrintJobParent.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/moz.build b/layout/printing/moz.build
index f4bfab42f54d..498fc872caa7 100644
--- a/layout/printing/moz.build
+++ b/layout/printing/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/printing/nsPagePrintTimer.cpp b/layout/printing/nsPagePrintTimer.cpp
index 71675b7afe36..e9c6f2bc679d 100644
--- a/layout/printing/nsPagePrintTimer.cpp
+++ b/layout/printing/nsPagePrintTimer.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPagePrintTimer.h b/layout/printing/nsPagePrintTimer.h
index 4df681f0d841..141a56db905d 100644
--- a/layout/printing/nsPagePrintTimer.h
+++ b/layout/printing/nsPagePrintTimer.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPrintData.cpp b/layout/printing/nsPrintData.cpp
index 6e60e96beeb5..37f911615b41 100644
--- a/layout/printing/nsPrintData.cpp
+++ b/layout/printing/nsPrintData.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPrintData.h b/layout/printing/nsPrintData.h
index 32043f8b7898..d1b5caf336e2 100644
--- a/layout/printing/nsPrintData.h
+++ b/layout/printing/nsPrintData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPrintJob.cpp b/layout/printing/nsPrintJob.cpp
index aa9219e46343..f6a15f8b008c 100644
--- a/layout/printing/nsPrintJob.cpp
+++ b/layout/printing/nsPrintJob.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPrintJob.h b/layout/printing/nsPrintJob.h
index 6c7a0ddd5e6e..771e71a57080 100644
--- a/layout/printing/nsPrintJob.h
+++ b/layout/printing/nsPrintJob.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPrintObject.cpp b/layout/printing/nsPrintObject.cpp
index 19daa8fa239f..c95868af79a3 100644
--- a/layout/printing/nsPrintObject.cpp
+++ b/layout/printing/nsPrintObject.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/printing/nsPrintObject.h b/layout/printing/nsPrintObject.h
index 561d0257250c..e8ccc3166a29 100644
--- a/layout/printing/nsPrintObject.h
+++ b/layout/printing/nsPrintObject.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/reftests/css-grid/support/dyn.js b/layout/reftests/css-grid/support/dyn.js
index 816a6f9b610d..f845bfa7a1d8 100644
--- a/layout/reftests/css-grid/support/dyn.js
+++ b/layout/reftests/css-grid/support/dyn.js
@@ -1,6 +1,4 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
- * vim: sw=2 ts=2 sts=2 et filetype=javascript
- * This Source Code Form is subject to the terms of the Mozilla Public
+/* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
diff --git a/layout/reftests/fonts/mark-generate.py b/layout/reftests/fonts/mark-generate.py
index 85f56a8a2e7f..288ccdd3cae8 100755
--- a/layout/reftests/fonts/mark-generate.py
+++ b/layout/reftests/fonts/mark-generate.py
@@ -1,5 +1,4 @@
 #!/usr/bin/python
-# vim: set shiftwidth=4 tabstop=8 autoindent expandtab:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/reftests/moz.build b/layout/reftests/moz.build
index 261ea6db09cc..43f24d811e85 100644
--- a/layout/reftests/moz.build
+++ b/layout/reftests/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/reftests/svg/as-image/svg-image-util.js b/layout/reftests/svg/as-image/svg-image-util.js
index ea84259238d2..79f189764835 100644
--- a/layout/reftests/svg/as-image/svg-image-util.js
+++ b/layout/reftests/svg/as-image/svg-image-util.js
@@ -1,4 +1,3 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/reftests/svg/image/util.js b/layout/reftests/svg/image/util.js
index 144edd356ae1..46e24a17ee09 100644
--- a/layout/reftests/svg/image/util.js
+++ b/layout/reftests/svg/image/util.js
@@ -1,4 +1,3 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/reftests/svg/mask-img-ref.html b/layout/reftests/svg/mask-img-ref.html
index a9505112c250..5504fbd0154b 100644
--- a/layout/reftests/svg/mask-img-ref.html
+++ b/layout/reftests/svg/mask-img-ref.html
@@ -2,7 +2,6 @@
 <html>
   <body style="margin:0">
     <img src='data:image/svg+xml,
-<!-- vim: set expandtab ts=2 sw=2 tw=80: -->
 <svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%"
   xmlns:xlink="http://www.w3.org/1999/xlink"
   viewBox="0 0 700 130">
diff --git a/layout/reftests/svg/mask-img.html b/layout/reftests/svg/mask-img.html
index e080a1b088c3..31fe9b8c362f 100644
--- a/layout/reftests/svg/mask-img.html
+++ b/layout/reftests/svg/mask-img.html
@@ -3,7 +3,6 @@
   <body style="margin:0">
     <div style="height:50px"></div>
     <img border=0 src='data:image/svg+xml,
-<!-- vim: set expandtab ts=2 sw=2 tw=80: -->
 <svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%"
   xmlns:xlink="http://www.w3.org/1999/xlink"
   viewBox="0 0 700 80">
diff --git a/layout/reftests/svg/smil/smil-grid.js b/layout/reftests/svg/smil/smil-grid.js
index 0c8036ea277c..26314b79ff08 100644
--- a/layout/reftests/svg/smil/smil-grid.js
+++ b/layout/reftests/svg/smil/smil-grid.js
@@ -1,5 +1,3 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=2 sw=2 sts=2 et: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/reftests/table-dom/tableDom.js b/layout/reftests/table-dom/tableDom.js
index 4caa43d6e51a..c3c0910c20df 100644
--- a/layout/reftests/table-dom/tableDom.js
+++ b/layout/reftests/table-dom/tableDom.js
@@ -1,4 +1,3 @@
-/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 4 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/AnimatedPropertyIDSet.h b/layout/style/AnimatedPropertyIDSet.h
index a2fe1e282624..b8ba4f470390 100644
--- a/layout/style/AnimatedPropertyIDSet.h
+++ b/layout/style/AnimatedPropertyIDSet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/AnimationCollection.cpp b/layout/style/AnimationCollection.cpp
index 29df63587751..1b2c7d9a2178 100644
--- a/layout/style/AnimationCollection.cpp
+++ b/layout/style/AnimationCollection.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/AnimationCollection.h b/layout/style/AnimationCollection.h
index b0680bd2ee64..5b938ca200c7 100644
--- a/layout/style/AnimationCollection.h
+++ b/layout/style/AnimationCollection.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/AnimationCommon.h b/layout/style/AnimationCommon.h
index 57aa6139af40..d5691a0d62d0 100644
--- a/layout/style/AnimationCommon.h
+++ b/layout/style/AnimationCommon.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/AttributeStyles.cpp b/layout/style/AttributeStyles.cpp
index 366cc16dae06..e641237a1a7f 100644
--- a/layout/style/AttributeStyles.cpp
+++ b/layout/style/AttributeStyles.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/AttributeStyles.h b/layout/style/AttributeStyles.h
index a3e4b8bea290..1d572eca45fc 100644
--- a/layout/style/AttributeStyles.h
+++ b/layout/style/AttributeStyles.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/BindgenUniquePtr.h b/layout/style/BindgenUniquePtr.h
index 4483fe6950c6..b848ad73941c 100644
--- a/layout/style/BindgenUniquePtr.h
+++ b/layout/style/BindgenUniquePtr.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/BuiltInStyleSheetList.inc b/layout/style/BuiltInStyleSheetList.inc
index f50be7d0d64a..8bd7aa7c248d 100644
--- a/layout/style/BuiltInStyleSheetList.inc
+++ b/layout/style/BuiltInStyleSheetList.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/BuiltInStyleSheets.h b/layout/style/BuiltInStyleSheets.h
index a11f43e72cac..0fe8aad2f794 100644
--- a/layout/style/BuiltInStyleSheets.h
+++ b/layout/style/BuiltInStyleSheets.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/BuiltinCounterStyleList.inc b/layout/style/BuiltinCounterStyleList.inc
index e68b72e59d9f..9c375e1b1b30 100644
--- a/layout/style/BuiltinCounterStyleList.inc
+++ b/layout/style/BuiltinCounterStyleList.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSS.cpp b/layout/style/CSS.cpp
index 7a3d95ca8c6b..774a3458e9c5 100644
--- a/layout/style/CSS.cpp
+++ b/layout/style/CSS.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSS.h b/layout/style/CSS.h
index c936a0331d59..bfd650dea121 100644
--- a/layout/style/CSS.h
+++ b/layout/style/CSS.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSContainerRule.cpp b/layout/style/CSSContainerRule.cpp
index 203fee06cef3..99b525135b92 100644
--- a/layout/style/CSSContainerRule.cpp
+++ b/layout/style/CSSContainerRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSContainerRule.h b/layout/style/CSSContainerRule.h
index 189c6ec276e0..c4714729acd5 100644
--- a/layout/style/CSSContainerRule.h
+++ b/layout/style/CSSContainerRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSCounterStyleRule.cpp b/layout/style/CSSCounterStyleRule.cpp
index 21ec384f1af9..43476d36672d 100644
--- a/layout/style/CSSCounterStyleRule.cpp
+++ b/layout/style/CSSCounterStyleRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSCounterStyleRule.h b/layout/style/CSSCounterStyleRule.h
index 87880abad53b..672af898a36f 100644
--- a/layout/style/CSSCounterStyleRule.h
+++ b/layout/style/CSSCounterStyleRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSCustomMediaRule.cpp b/layout/style/CSSCustomMediaRule.cpp
index f913828d58c4..bff67db88064 100644
--- a/layout/style/CSSCustomMediaRule.cpp
+++ b/layout/style/CSSCustomMediaRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSCustomMediaRule.h b/layout/style/CSSCustomMediaRule.h
index 87bd71328a38..2ac8cda577f0 100644
--- a/layout/style/CSSCustomMediaRule.h
+++ b/layout/style/CSSCustomMediaRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSEnabledState.h b/layout/style/CSSEnabledState.h
index b8793d16431d..e4fed0d0fa9e 100644
--- a/layout/style/CSSEnabledState.h
+++ b/layout/style/CSSEnabledState.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSFontFaceRule.cpp b/layout/style/CSSFontFaceRule.cpp
index bb7cac1c0b4f..9d07f190705d 100644
--- a/layout/style/CSSFontFaceRule.cpp
+++ b/layout/style/CSSFontFaceRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSFontFaceRule.h b/layout/style/CSSFontFaceRule.h
index 3262fa9e5562..bc01fcc55fd2 100644
--- a/layout/style/CSSFontFaceRule.h
+++ b/layout/style/CSSFontFaceRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSFontFeatureValuesRule.cpp b/layout/style/CSSFontFeatureValuesRule.cpp
index a51c5bed44d0..efc5c2113066 100644
--- a/layout/style/CSSFontFeatureValuesRule.cpp
+++ b/layout/style/CSSFontFeatureValuesRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSFontFeatureValuesRule.h b/layout/style/CSSFontFeatureValuesRule.h
index cb64b8679f72..ceafceaab7ff 100644
--- a/layout/style/CSSFontFeatureValuesRule.h
+++ b/layout/style/CSSFontFeatureValuesRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSFontPaletteValuesRule.cpp b/layout/style/CSSFontPaletteValuesRule.cpp
index 8ab9bd38e4f6..3bd0e37c029d 100644
--- a/layout/style/CSSFontPaletteValuesRule.cpp
+++ b/layout/style/CSSFontPaletteValuesRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSFontPaletteValuesRule.h b/layout/style/CSSFontPaletteValuesRule.h
index d0dfb53c3cff..386012ecff24 100644
--- a/layout/style/CSSFontPaletteValuesRule.h
+++ b/layout/style/CSSFontPaletteValuesRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSImportRule.cpp b/layout/style/CSSImportRule.cpp
index 7eecc90f5b36..864caffffce2 100644
--- a/layout/style/CSSImportRule.cpp
+++ b/layout/style/CSSImportRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSImportRule.h b/layout/style/CSSImportRule.h
index fbe21a576a1a..9b1f79c306f9 100644
--- a/layout/style/CSSImportRule.h
+++ b/layout/style/CSSImportRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSKeyframeRule.cpp b/layout/style/CSSKeyframeRule.cpp
index ff9430ecbfc7..0ba254aa3e8e 100644
--- a/layout/style/CSSKeyframeRule.cpp
+++ b/layout/style/CSSKeyframeRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSKeyframeRule.h b/layout/style/CSSKeyframeRule.h
index a06bfa0a7470..9700417f5636 100644
--- a/layout/style/CSSKeyframeRule.h
+++ b/layout/style/CSSKeyframeRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSKeyframesRule.cpp b/layout/style/CSSKeyframesRule.cpp
index b46588a8c3d9..84c3a1b6ad0d 100644
--- a/layout/style/CSSKeyframesRule.cpp
+++ b/layout/style/CSSKeyframesRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSKeyframesRule.h b/layout/style/CSSKeyframesRule.h
index 191e9a5f181d..555fc56e507d 100644
--- a/layout/style/CSSKeyframesRule.h
+++ b/layout/style/CSSKeyframesRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSLayerBlockRule.cpp b/layout/style/CSSLayerBlockRule.cpp
index 92d40c88e154..27c6fde7378b 100644
--- a/layout/style/CSSLayerBlockRule.cpp
+++ b/layout/style/CSSLayerBlockRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSLayerBlockRule.h b/layout/style/CSSLayerBlockRule.h
index 5b7f9a3f180b..e3bda1b8514a 100644
--- a/layout/style/CSSLayerBlockRule.h
+++ b/layout/style/CSSLayerBlockRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSLayerStatementRule.cpp b/layout/style/CSSLayerStatementRule.cpp
index 2abf1d2b82c7..48f1ea92b43d 100644
--- a/layout/style/CSSLayerStatementRule.cpp
+++ b/layout/style/CSSLayerStatementRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSLayerStatementRule.h b/layout/style/CSSLayerStatementRule.h
index a9b7e7fbefb1..c683a35f4885 100644
--- a/layout/style/CSSLayerStatementRule.h
+++ b/layout/style/CSSLayerStatementRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSMarginRule.cpp b/layout/style/CSSMarginRule.cpp
index 765fce09cc2f..8741fbe0d1ba 100644
--- a/layout/style/CSSMarginRule.cpp
+++ b/layout/style/CSSMarginRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSMarginRule.h b/layout/style/CSSMarginRule.h
index 28d0a145b647..4a0c68a50e02 100644
--- a/layout/style/CSSMarginRule.h
+++ b/layout/style/CSSMarginRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSMediaRule.cpp b/layout/style/CSSMediaRule.cpp
index e146da153f3b..1916fcac2f45 100644
--- a/layout/style/CSSMediaRule.cpp
+++ b/layout/style/CSSMediaRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSMediaRule.h b/layout/style/CSSMediaRule.h
index d89f35e20936..c49ee0223e60 100644
--- a/layout/style/CSSMediaRule.h
+++ b/layout/style/CSSMediaRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSMozDocumentRule.cpp b/layout/style/CSSMozDocumentRule.cpp
index 4eda1bdd41f1..35cf4b7acb24 100644
--- a/layout/style/CSSMozDocumentRule.cpp
+++ b/layout/style/CSSMozDocumentRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSMozDocumentRule.h b/layout/style/CSSMozDocumentRule.h
index f646c825c338..a79135ff37d5 100644
--- a/layout/style/CSSMozDocumentRule.h
+++ b/layout/style/CSSMozDocumentRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSNamespaceRule.cpp b/layout/style/CSSNamespaceRule.cpp
index 5baa2bba0b32..53fbbed6690a 100644
--- a/layout/style/CSSNamespaceRule.cpp
+++ b/layout/style/CSSNamespaceRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSNamespaceRule.h b/layout/style/CSSNamespaceRule.h
index 3b70bc24d277..05434bb76bd1 100644
--- a/layout/style/CSSNamespaceRule.h
+++ b/layout/style/CSSNamespaceRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSNestedDeclarations.cpp b/layout/style/CSSNestedDeclarations.cpp
index 09ab7553b96d..420c5653c765 100644
--- a/layout/style/CSSNestedDeclarations.cpp
+++ b/layout/style/CSSNestedDeclarations.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSNestedDeclarations.h b/layout/style/CSSNestedDeclarations.h
index 6c869181b46a..6a6b014b4154 100644
--- a/layout/style/CSSNestedDeclarations.h
+++ b/layout/style/CSSNestedDeclarations.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPageRule.cpp b/layout/style/CSSPageRule.cpp
index 4f3d2e24f8e2..b6a52bade966 100644
--- a/layout/style/CSSPageRule.cpp
+++ b/layout/style/CSSPageRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPageRule.h b/layout/style/CSSPageRule.h
index 20d3189088c0..01b777859ab2 100644
--- a/layout/style/CSSPageRule.h
+++ b/layout/style/CSSPageRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPositionTryRule.cpp b/layout/style/CSSPositionTryRule.cpp
index 181a23576032..cba46e040089 100644
--- a/layout/style/CSSPositionTryRule.cpp
+++ b/layout/style/CSSPositionTryRule.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPositionTryRule.h b/layout/style/CSSPositionTryRule.h
index 526f4549eda4..ea6f945e1a10 100644
--- a/layout/style/CSSPositionTryRule.h
+++ b/layout/style/CSSPositionTryRule.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPropFlags.h b/layout/style/CSSPropFlags.h
index da096ea82c9a..dc1183766d05 100644
--- a/layout/style/CSSPropFlags.h
+++ b/layout/style/CSSPropFlags.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPropertyId.h b/layout/style/CSSPropertyId.h
index 66243971602c..69d4e8d6a001 100644
--- a/layout/style/CSSPropertyId.h
+++ b/layout/style/CSSPropertyId.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPropertyRule.cpp b/layout/style/CSSPropertyRule.cpp
index 3bc73a8079ec..47c8334f8499 100644
--- a/layout/style/CSSPropertyRule.cpp
+++ b/layout/style/CSSPropertyRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSPropertyRule.h b/layout/style/CSSPropertyRule.h
index 84ff6615f648..8c9461f5affb 100644
--- a/layout/style/CSSPropertyRule.h
+++ b/layout/style/CSSPropertyRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSRuleList.cpp b/layout/style/CSSRuleList.cpp
index e4e917902249..bed8a3114d34 100644
--- a/layout/style/CSSRuleList.cpp
+++ b/layout/style/CSSRuleList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSRuleList.h b/layout/style/CSSRuleList.h
index b3802233d03d..81d0bb50101b 100644
--- a/layout/style/CSSRuleList.h
+++ b/layout/style/CSSRuleList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSScopeRule.cpp b/layout/style/CSSScopeRule.cpp
index 931c38514af0..710340add04c 100644
--- a/layout/style/CSSScopeRule.cpp
+++ b/layout/style/CSSScopeRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSScopeRule.h b/layout/style/CSSScopeRule.h
index cce88851eb23..cf35d964eda4 100644
--- a/layout/style/CSSScopeRule.h
+++ b/layout/style/CSSScopeRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSStartingStyleRule.cpp b/layout/style/CSSStartingStyleRule.cpp
index 79710faf2b42..d26caee07a3c 100644
--- a/layout/style/CSSStartingStyleRule.cpp
+++ b/layout/style/CSSStartingStyleRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSStartingStyleRule.h b/layout/style/CSSStartingStyleRule.h
index a41841cea475..3567c10d9417 100644
--- a/layout/style/CSSStartingStyleRule.h
+++ b/layout/style/CSSStartingStyleRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSStyleRule.cpp b/layout/style/CSSStyleRule.cpp
index 1d1e79aae4af..8c4d53fdd6f2 100644
--- a/layout/style/CSSStyleRule.cpp
+++ b/layout/style/CSSStyleRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSStyleRule.h b/layout/style/CSSStyleRule.h
index 35abb84003ca..d1238a2fbbbf 100644
--- a/layout/style/CSSStyleRule.h
+++ b/layout/style/CSSStyleRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSSupportsRule.cpp b/layout/style/CSSSupportsRule.cpp
index eb85f982e8f1..890a58cf3d50 100644
--- a/layout/style/CSSSupportsRule.cpp
+++ b/layout/style/CSSSupportsRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSSupportsRule.h b/layout/style/CSSSupportsRule.h
index cc7be6baae3f..ba630395c1e2 100644
--- a/layout/style/CSSSupportsRule.h
+++ b/layout/style/CSSSupportsRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CSSValue.h b/layout/style/CSSValue.h
index d0a44e16b120..5a9689ce64b3 100644
--- a/layout/style/CSSValue.h
+++ b/layout/style/CSSValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CachedInheritingStyles.cpp b/layout/style/CachedInheritingStyles.cpp
index ee3d57bfe87b..be92b70fc50f 100644
--- a/layout/style/CachedInheritingStyles.cpp
+++ b/layout/style/CachedInheritingStyles.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CachedInheritingStyles.h b/layout/style/CachedInheritingStyles.h
index c51d223cddb6..281684751fcb 100644
--- a/layout/style/CachedInheritingStyles.h
+++ b/layout/style/CachedInheritingStyles.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ComputedStyle.cpp b/layout/style/ComputedStyle.cpp
index a446c0bfed09..dabd98af89e6 100644
--- a/layout/style/ComputedStyle.cpp
+++ b/layout/style/ComputedStyle.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ComputedStyle.h b/layout/style/ComputedStyle.h
index a2e3769eb451..195a1e992968 100644
--- a/layout/style/ComputedStyle.h
+++ b/layout/style/ComputedStyle.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ComputedStyleInlines.h b/layout/style/ComputedStyleInlines.h
index b74f8ae2bf43..b0be550355e8 100644
--- a/layout/style/ComputedStyleInlines.h
+++ b/layout/style/ComputedStyleInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CounterStyleManager.cpp b/layout/style/CounterStyleManager.cpp
index 0bf54416480f..bd408cd69296 100644
--- a/layout/style/CounterStyleManager.cpp
+++ b/layout/style/CounterStyleManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/CounterStyleManager.h b/layout/style/CounterStyleManager.h
index d0f467748b90..0489e780e193 100644
--- a/layout/style/CounterStyleManager.h
+++ b/layout/style/CounterStyleManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/DeclarationBlock.cpp b/layout/style/DeclarationBlock.cpp
index c2c7a07926bf..49c2b79fecda 100644
--- a/layout/style/DeclarationBlock.cpp
+++ b/layout/style/DeclarationBlock.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/DeclarationBlock.h b/layout/style/DeclarationBlock.h
index a6751286f179..c988be669d8c 100644
--- a/layout/style/DeclarationBlock.h
+++ b/layout/style/DeclarationBlock.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/DocumentMatchingFunction.h b/layout/style/DocumentMatchingFunction.h
index f22161c3394e..d3fbd39a780e 100644
--- a/layout/style/DocumentMatchingFunction.h
+++ b/layout/style/DocumentMatchingFunction.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/DocumentStyleRootIterator.cpp b/layout/style/DocumentStyleRootIterator.cpp
index 0d9595c434af..6f07ab8c7649 100644
--- a/layout/style/DocumentStyleRootIterator.cpp
+++ b/layout/style/DocumentStyleRootIterator.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/DocumentStyleRootIterator.h b/layout/style/DocumentStyleRootIterator.h
index 84f48d02d74a..702019fc1998 100644
--- a/layout/style/DocumentStyleRootIterator.h
+++ b/layout/style/DocumentStyleRootIterator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ErrorReporter.cpp b/layout/style/ErrorReporter.cpp
index 065440e1bd6c..89827010d454 100644
--- a/layout/style/ErrorReporter.cpp
+++ b/layout/style/ErrorReporter.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ErrorReporter.h b/layout/style/ErrorReporter.h
index e1e21c823461..c46f201f68f6 100644
--- a/layout/style/ErrorReporter.h
+++ b/layout/style/ErrorReporter.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFace.cpp b/layout/style/FontFace.cpp
index d85f7b3bf275..b99f2d4e21e6 100644
--- a/layout/style/FontFace.cpp
+++ b/layout/style/FontFace.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFace.h b/layout/style/FontFace.h
index c791b208f756..faa957449a9d 100644
--- a/layout/style/FontFace.h
+++ b/layout/style/FontFace.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceImpl.cpp b/layout/style/FontFaceImpl.cpp
index b9640188f626..fc1f345900e0 100644
--- a/layout/style/FontFaceImpl.cpp
+++ b/layout/style/FontFaceImpl.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceImpl.h b/layout/style/FontFaceImpl.h
index c2f2263106fb..a041c748aa0b 100644
--- a/layout/style/FontFaceImpl.h
+++ b/layout/style/FontFaceImpl.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSet.cpp b/layout/style/FontFaceSet.cpp
index 2ca9d4e75d59..3f7cbba69828 100644
--- a/layout/style/FontFaceSet.cpp
+++ b/layout/style/FontFaceSet.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSet.h b/layout/style/FontFaceSet.h
index a4aa086c0248..465c3b24132a 100644
--- a/layout/style/FontFaceSet.h
+++ b/layout/style/FontFaceSet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetDocumentImpl.cpp b/layout/style/FontFaceSetDocumentImpl.cpp
index f3ec336d6488..e938df3c360d 100644
--- a/layout/style/FontFaceSetDocumentImpl.cpp
+++ b/layout/style/FontFaceSetDocumentImpl.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetDocumentImpl.h b/layout/style/FontFaceSetDocumentImpl.h
index ba058bf13120..4f205ff9b287 100644
--- a/layout/style/FontFaceSetDocumentImpl.h
+++ b/layout/style/FontFaceSetDocumentImpl.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetImpl.cpp b/layout/style/FontFaceSetImpl.cpp
index dbd053dbfe32..79076ac5916c 100644
--- a/layout/style/FontFaceSetImpl.cpp
+++ b/layout/style/FontFaceSetImpl.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetImpl.h b/layout/style/FontFaceSetImpl.h
index 5fdd36a4971e..cb2dc6cc0fbc 100644
--- a/layout/style/FontFaceSetImpl.h
+++ b/layout/style/FontFaceSetImpl.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetIterator.cpp b/layout/style/FontFaceSetIterator.cpp
index ca05ee87d756..2ac8436589ff 100644
--- a/layout/style/FontFaceSetIterator.cpp
+++ b/layout/style/FontFaceSetIterator.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetIterator.h b/layout/style/FontFaceSetIterator.h
index e18669e9b530..31058b1fa5f2 100644
--- a/layout/style/FontFaceSetIterator.h
+++ b/layout/style/FontFaceSetIterator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetWorkerImpl.cpp b/layout/style/FontFaceSetWorkerImpl.cpp
index 9951e57a1d35..1787cdc6cdb6 100644
--- a/layout/style/FontFaceSetWorkerImpl.cpp
+++ b/layout/style/FontFaceSetWorkerImpl.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontFaceSetWorkerImpl.h b/layout/style/FontFaceSetWorkerImpl.h
index b6f9dc85a89e..e410cef80ee1 100644
--- a/layout/style/FontFaceSetWorkerImpl.h
+++ b/layout/style/FontFaceSetWorkerImpl.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontLoaderUtils.cpp b/layout/style/FontLoaderUtils.cpp
index dba8bb99d164..b103cc8ac2d0 100644
--- a/layout/style/FontLoaderUtils.cpp
+++ b/layout/style/FontLoaderUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontLoaderUtils.h b/layout/style/FontLoaderUtils.h
index 0c6c77866f4b..fcdf57585e1b 100644
--- a/layout/style/FontLoaderUtils.h
+++ b/layout/style/FontLoaderUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontPreloader.cpp b/layout/style/FontPreloader.cpp
index c10a49767fcb..230b708d2fd8 100644
--- a/layout/style/FontPreloader.cpp
+++ b/layout/style/FontPreloader.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/FontPreloader.h b/layout/style/FontPreloader.h
index 23e4cc38da21..e94249c14fd1 100644
--- a/layout/style/FontPreloader.h
+++ b/layout/style/FontPreloader.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/GeckoBindings.cpp b/layout/style/GeckoBindings.cpp
index df6f09b5444e..45eb9fe066fc 100644
--- a/layout/style/GeckoBindings.cpp
+++ b/layout/style/GeckoBindings.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/GeckoBindings.h b/layout/style/GeckoBindings.h
index 732683044e68..66755116e89f 100644
--- a/layout/style/GeckoBindings.h
+++ b/layout/style/GeckoBindings.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/GlobalStyleSheetCache.cpp b/layout/style/GlobalStyleSheetCache.cpp
index 54e77941c330..71d804a9ca74 100644
--- a/layout/style/GlobalStyleSheetCache.cpp
+++ b/layout/style/GlobalStyleSheetCache.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/GlobalStyleSheetCache.h b/layout/style/GlobalStyleSheetCache.h
index 5cdc9fcddaf0..b5407aeb1701 100644
--- a/layout/style/GlobalStyleSheetCache.h
+++ b/layout/style/GlobalStyleSheetCache.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/GroupRule.cpp b/layout/style/GroupRule.cpp
index 20a2e880a573..dcb10d86c95d 100644
--- a/layout/style/GroupRule.cpp
+++ b/layout/style/GroupRule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/GroupRule.h b/layout/style/GroupRule.h
index ae496d1cde15..f946a045048b 100644
--- a/layout/style/GroupRule.h
+++ b/layout/style/GroupRule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ImageDocument.css b/layout/style/ImageDocument.css
index c2333036a00f..afef2157e59e 100644
--- a/layout/style/ImageDocument.css
+++ b/layout/style/ImageDocument.css
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ImageLoader.cpp b/layout/style/ImageLoader.cpp
index 4f79ae123eb8..c3bed1a4de57 100644
--- a/layout/style/ImageLoader.cpp
+++ b/layout/style/ImageLoader.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ImageLoader.h b/layout/style/ImageLoader.h
index 14f337ed733e..0b6288301931 100644
--- a/layout/style/ImageLoader.h
+++ b/layout/style/ImageLoader.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ImportScanner.cpp b/layout/style/ImportScanner.cpp
index 7f9dae5c6727..614e6fdf14d4 100644
--- a/layout/style/ImportScanner.cpp
+++ b/layout/style/ImportScanner.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 sw=2 et tw=78: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ImportScanner.h b/layout/style/ImportScanner.h
index ff1755fb8be9..d3078babac2f 100644
--- a/layout/style/ImportScanner.h
+++ b/layout/style/ImportScanner.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 sw=2 et tw=78: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/LayerAnimationInfo.cpp b/layout/style/LayerAnimationInfo.cpp
index 9fa5ca8fadc1..47c2dd1403ac 100644
--- a/layout/style/LayerAnimationInfo.cpp
+++ b/layout/style/LayerAnimationInfo.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/LayerAnimationInfo.h b/layout/style/LayerAnimationInfo.h
index 94dc21986db0..92f3a061c054 100644
--- a/layout/style/LayerAnimationInfo.h
+++ b/layout/style/LayerAnimationInfo.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/Loader.cpp b/layout/style/Loader.cpp
index 77108726e51f..fa1c3d29f115 100644
--- a/layout/style/Loader.cpp
+++ b/layout/style/Loader.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/Loader.h b/layout/style/Loader.h
index 3313f783e0cb..79e263ba8873 100644
--- a/layout/style/Loader.h
+++ b/layout/style/Loader.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MappedDeclarationsBuilder.cpp b/layout/style/MappedDeclarationsBuilder.cpp
index 0104ee264e30..d94b95b27e19 100644
--- a/layout/style/MappedDeclarationsBuilder.cpp
+++ b/layout/style/MappedDeclarationsBuilder.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MappedDeclarationsBuilder.h b/layout/style/MappedDeclarationsBuilder.h
index ba804e7b4c6c..47c0a6b65028 100644
--- a/layout/style/MappedDeclarationsBuilder.h
+++ b/layout/style/MappedDeclarationsBuilder.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MediaFeatureChange.h b/layout/style/MediaFeatureChange.h
index 1be432610f61..ada1cf997615 100644
--- a/layout/style/MediaFeatureChange.h
+++ b/layout/style/MediaFeatureChange.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MediaList.cpp b/layout/style/MediaList.cpp
index 923fda1ccb87..254611ae2a40 100644
--- a/layout/style/MediaList.cpp
+++ b/layout/style/MediaList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MediaList.h b/layout/style/MediaList.h
index 62c5eabee973..a9801f866fc2 100644
--- a/layout/style/MediaList.h
+++ b/layout/style/MediaList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MediaQueryList.cpp b/layout/style/MediaQueryList.cpp
index 2957fcb52baa..8b8c7a7c62e7 100644
--- a/layout/style/MediaQueryList.cpp
+++ b/layout/style/MediaQueryList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/MediaQueryList.h b/layout/style/MediaQueryList.h
index 4f9ab752b2e9..1db7a7ac8bc4 100644
--- a/layout/style/MediaQueryList.h
+++ b/layout/style/MediaQueryList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/NonCustomCSSPropertyId.h.in b/layout/style/NonCustomCSSPropertyId.h.in
index 805e4b5f28ff..4cd5e1bac451 100644
--- a/layout/style/NonCustomCSSPropertyId.h.in
+++ b/layout/style/NonCustomCSSPropertyId.h.in
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PaintWorkletGlobalScope.cpp b/layout/style/PaintWorkletGlobalScope.cpp
index 22b615cc25e6..112ebd905034 100644
--- a/layout/style/PaintWorkletGlobalScope.cpp
+++ b/layout/style/PaintWorkletGlobalScope.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PaintWorkletGlobalScope.h b/layout/style/PaintWorkletGlobalScope.h
index 21858ba16ba6..4d2e5a127993 100644
--- a/layout/style/PaintWorkletGlobalScope.h
+++ b/layout/style/PaintWorkletGlobalScope.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PaintWorkletImpl.cpp b/layout/style/PaintWorkletImpl.cpp
index 3e7ca2ac1107..ef7dcca2b5d5 100644
--- a/layout/style/PaintWorkletImpl.cpp
+++ b/layout/style/PaintWorkletImpl.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PaintWorkletImpl.h b/layout/style/PaintWorkletImpl.h
index 572595da407e..524df34e7458 100644
--- a/layout/style/PaintWorkletImpl.h
+++ b/layout/style/PaintWorkletImpl.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PostTraversalTask.cpp b/layout/style/PostTraversalTask.cpp
index 0625cb878ad2..24f06fda3746 100644
--- a/layout/style/PostTraversalTask.cpp
+++ b/layout/style/PostTraversalTask.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PostTraversalTask.h b/layout/style/PostTraversalTask.h
index 3e9d1dfa1153..3f09887d24c4 100644
--- a/layout/style/PostTraversalTask.h
+++ b/layout/style/PostTraversalTask.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PreferenceSheet.cpp b/layout/style/PreferenceSheet.cpp
index fb4dedee106e..0b3a3179037a 100644
--- a/layout/style/PreferenceSheet.cpp
+++ b/layout/style/PreferenceSheet.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PreferenceSheet.h b/layout/style/PreferenceSheet.h
index b4281398e8e2..72e0fd6315d8 100644
--- a/layout/style/PreferenceSheet.h
+++ b/layout/style/PreferenceSheet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PreloadedStyleSheet.cpp b/layout/style/PreloadedStyleSheet.cpp
index fa0ac44e1ffa..c2e50efd12a6 100644
--- a/layout/style/PreloadedStyleSheet.cpp
+++ b/layout/style/PreloadedStyleSheet.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PreloadedStyleSheet.h b/layout/style/PreloadedStyleSheet.h
index b4a90f8ae8c7..2d5e11893c88 100644
--- a/layout/style/PreloadedStyleSheet.h
+++ b/layout/style/PreloadedStyleSheet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PseudoStyleRequest.h b/layout/style/PseudoStyleRequest.h
index 6ab60db371dc..1e8f46e5abc7 100644
--- a/layout/style/PseudoStyleRequest.h
+++ b/layout/style/PseudoStyleRequest.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PseudoStyleType.cpp b/layout/style/PseudoStyleType.cpp
index 7ca631cb9b8f..58a1155d54cb 100644
--- a/layout/style/PseudoStyleType.cpp
+++ b/layout/style/PseudoStyleType.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/PseudoStyleType.h b/layout/style/PseudoStyleType.h
index 0c5d873b9bb2..186f856e4fe2 100644
--- a/layout/style/PseudoStyleType.h
+++ b/layout/style/PseudoStyleType.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/RestyleManager.cpp b/layout/style/RestyleManager.cpp
index a67861977ec8..1b5833c62f59 100644
--- a/layout/style/RestyleManager.cpp
+++ b/layout/style/RestyleManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/RestyleManager.h b/layout/style/RestyleManager.h
index 97032c973705..1ad73ac2a569 100644
--- a/layout/style/RestyleManager.h
+++ b/layout/style/RestyleManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/Rule.cpp b/layout/style/Rule.cpp
index f11ad9918004..0cd3907e2390 100644
--- a/layout/style/Rule.cpp
+++ b/layout/style/Rule.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/Rule.h b/layout/style/Rule.h
index 6a3ca2389377..838d8b2d5907 100644
--- a/layout/style/Rule.h
+++ b/layout/style/Rule.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/RustCell.h b/layout/style/RustCell.h
index 24f2ebc74dd2..fae0406136bb 100644
--- a/layout/style/RustCell.h
+++ b/layout/style/RustCell.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoBindingTypes.h b/layout/style/ServoBindingTypes.h
index c5fad19ac1c7..2411949a84f8 100644
--- a/layout/style/ServoBindingTypes.h
+++ b/layout/style/ServoBindingTypes.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoBindings.h b/layout/style/ServoBindings.h
index 315dca539b9d..9b147e4806dd 100644
--- a/layout/style/ServoBindings.h
+++ b/layout/style/ServoBindings.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoBoxedTypeList.inc b/layout/style/ServoBoxedTypeList.inc
index fa881a9b62a8..bccf741dabd2 100644
--- a/layout/style/ServoBoxedTypeList.inc
+++ b/layout/style/ServoBoxedTypeList.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoCSSParser.cpp b/layout/style/ServoCSSParser.cpp
index f623cf4d03b0..f9f4d9ecb120 100644
--- a/layout/style/ServoCSSParser.cpp
+++ b/layout/style/ServoCSSParser.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoCSSParser.h b/layout/style/ServoCSSParser.h
index 25c7635ec4fa..58e4a7c06b0f 100644
--- a/layout/style/ServoCSSParser.h
+++ b/layout/style/ServoCSSParser.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoCSSRuleList.cpp b/layout/style/ServoCSSRuleList.cpp
index 19af92eb3ad8..a56115aec95c 100644
--- a/layout/style/ServoCSSRuleList.cpp
+++ b/layout/style/ServoCSSRuleList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoCSSRuleList.h b/layout/style/ServoCSSRuleList.h
index 123f2338958f..237e5f843519 100644
--- a/layout/style/ServoCSSRuleList.h
+++ b/layout/style/ServoCSSRuleList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoComputedData.h b/layout/style/ServoComputedData.h
index 400c05ebb2d1..d69838b5c823 100644
--- a/layout/style/ServoComputedData.h
+++ b/layout/style/ServoComputedData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoElementSnapshot.cpp b/layout/style/ServoElementSnapshot.cpp
index 1408c01673cd..8badf6b8ed35 100644
--- a/layout/style/ServoElementSnapshot.cpp
+++ b/layout/style/ServoElementSnapshot.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoElementSnapshot.h b/layout/style/ServoElementSnapshot.h
index deb850599f05..9597b43f96ca 100644
--- a/layout/style/ServoElementSnapshot.h
+++ b/layout/style/ServoElementSnapshot.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoElementSnapshotTable.h b/layout/style/ServoElementSnapshotTable.h
index 99f8fba919a7..dc22df5d5c68 100644
--- a/layout/style/ServoElementSnapshotTable.h
+++ b/layout/style/ServoElementSnapshotTable.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoLockedArcTypeList.inc b/layout/style/ServoLockedArcTypeList.inc
index ae7bc9c8e4e4..cae1f2dfe5c3 100644
--- a/layout/style/ServoLockedArcTypeList.inc
+++ b/layout/style/ServoLockedArcTypeList.inc
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoStyleConstsInlines.h b/layout/style/ServoStyleConstsInlines.h
index 1d741a2d6f27..d362935aae27 100644
--- a/layout/style/ServoStyleConstsInlines.h
+++ b/layout/style/ServoStyleConstsInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoStyleSet.cpp b/layout/style/ServoStyleSet.cpp
index 998a2f8f0b6c..07d4013bcef3 100644
--- a/layout/style/ServoStyleSet.cpp
+++ b/layout/style/ServoStyleSet.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoStyleSet.h b/layout/style/ServoStyleSet.h
index 910d8a091313..1832c0e93995 100644
--- a/layout/style/ServoStyleSet.h
+++ b/layout/style/ServoStyleSet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoStyleSetInlines.h b/layout/style/ServoStyleSetInlines.h
index 9c08858ac844..9554b7803666 100644
--- a/layout/style/ServoStyleSetInlines.h
+++ b/layout/style/ServoStyleSetInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoTraversalStatistics.h b/layout/style/ServoTraversalStatistics.h
index abb95d19fef8..5b54f413fa12 100644
--- a/layout/style/ServoTraversalStatistics.h
+++ b/layout/style/ServoTraversalStatistics.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoTypes.h b/layout/style/ServoTypes.h
index 62caa7f3f87e..2dfa31403b70 100644
--- a/layout/style/ServoTypes.h
+++ b/layout/style/ServoTypes.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ServoUtils.h b/layout/style/ServoUtils.h
index 9621fb9e4a5f..402fa3449689 100644
--- a/layout/style/ServoUtils.h
+++ b/layout/style/ServoUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ShadowParts.cpp b/layout/style/ShadowParts.cpp
index d70900d66737..c38b30a00016 100644
--- a/layout/style/ShadowParts.cpp
+++ b/layout/style/ShadowParts.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/ShadowParts.h b/layout/style/ShadowParts.h
index e955edc16d43..5a6396d17a25 100644
--- a/layout/style/ShadowParts.h
+++ b/layout/style/ShadowParts.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/SharedStyleSheetCache.cpp b/layout/style/SharedStyleSheetCache.cpp
index fb61a8d85f3f..8834267dc551 100644
--- a/layout/style/SharedStyleSheetCache.cpp
+++ b/layout/style/SharedStyleSheetCache.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/SharedStyleSheetCache.h b/layout/style/SharedStyleSheetCache.h
index 5a6cbe415fcb..70a45aea5e07 100644
--- a/layout/style/SharedStyleSheetCache.h
+++ b/layout/style/SharedStyleSheetCache.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/SharedSubResourceCache.cpp b/layout/style/SharedSubResourceCache.cpp
index 3a452247774b..b0985fe4e5fa 100644
--- a/layout/style/SharedSubResourceCache.cpp
+++ b/layout/style/SharedSubResourceCache.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/SharedSubResourceCache.h b/layout/style/SharedSubResourceCache.h
index 3954afb0a630..21d44e809be7 100644
--- a/layout/style/SharedSubResourceCache.h
+++ b/layout/style/SharedSubResourceCache.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/SheetLoadData.h b/layout/style/SheetLoadData.h
index 96c2f798fae3..ce95b5533cc8 100644
--- a/layout/style/SheetLoadData.h
+++ b/layout/style/SheetLoadData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/SheetParsingMode.h b/layout/style/SheetParsingMode.h
index 24656778a7d7..a330809f9932 100644
--- a/layout/style/SheetParsingMode.h
+++ b/layout/style/SheetParsingMode.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StreamLoader.cpp b/layout/style/StreamLoader.cpp
index d8691d820bd9..371a4ca85c4a 100644
--- a/layout/style/StreamLoader.cpp
+++ b/layout/style/StreamLoader.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StreamLoader.h b/layout/style/StreamLoader.h
index 20b0c8e22047..bf082bfc2c1f 100644
--- a/layout/style/StreamLoader.h
+++ b/layout/style/StreamLoader.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleAnimationValue.cpp b/layout/style/StyleAnimationValue.cpp
index 153e3f12760d..ba17f60250d9 100644
--- a/layout/style/StyleAnimationValue.cpp
+++ b/layout/style/StyleAnimationValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleAnimationValue.h b/layout/style/StyleAnimationValue.h
index a1e56248743e..7a60025b45d0 100644
--- a/layout/style/StyleAnimationValue.h
+++ b/layout/style/StyleAnimationValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleColor.cpp b/layout/style/StyleColor.cpp
index 5fd5f7efba9b..95c7ae6abea5 100644
--- a/layout/style/StyleColor.cpp
+++ b/layout/style/StyleColor.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleColorInlines.h b/layout/style/StyleColorInlines.h
index 630734ecb43e..332f715ca2a1 100644
--- a/layout/style/StyleColorInlines.h
+++ b/layout/style/StyleColorInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StylePreloadKind.h b/layout/style/StylePreloadKind.h
index 224a701b24b5..5032e5531326 100644
--- a/layout/style/StylePreloadKind.h
+++ b/layout/style/StylePreloadKind.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleSheet.cpp b/layout/style/StyleSheet.cpp
index 845c8a7b1d32..e003d4f87ca4 100644
--- a/layout/style/StyleSheet.cpp
+++ b/layout/style/StyleSheet.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleSheet.h b/layout/style/StyleSheet.h
index 32cec89c21ad..3647846d5c9e 100644
--- a/layout/style/StyleSheet.h
+++ b/layout/style/StyleSheet.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleSheetInfo.h b/layout/style/StyleSheetInfo.h
index cb96737e5ff2..3fa599684c70 100644
--- a/layout/style/StyleSheetInfo.h
+++ b/layout/style/StyleSheetInfo.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/StyleSheetInlines.h b/layout/style/StyleSheetInlines.h
index 843fbc2c42ec..7631fbb49e63 100644
--- a/layout/style/StyleSheetInlines.h
+++ b/layout/style/StyleSheetInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/TimelineCollection.cpp b/layout/style/TimelineCollection.cpp
index 38ae446e5108..53fbcc77fe7c 100644
--- a/layout/style/TimelineCollection.cpp
+++ b/layout/style/TimelineCollection.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/TimelineCollection.h b/layout/style/TimelineCollection.h
index b246776a1c75..8fe99a4a9006 100644
--- a/layout/style/TimelineCollection.h
+++ b/layout/style/TimelineCollection.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/TimelineManager.cpp b/layout/style/TimelineManager.cpp
index 0b40d3bec70d..d24dd2e7415c 100644
--- a/layout/style/TimelineManager.cpp
+++ b/layout/style/TimelineManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/TimelineManager.h b/layout/style/TimelineManager.h
index 34ec655428f9..412542291ae2 100644
--- a/layout/style/TimelineManager.h
+++ b/layout/style/TimelineManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/TopLevelImageDocument.css b/layout/style/TopLevelImageDocument.css
index 535243f8efa0..c34683a0613a 100644
--- a/layout/style/TopLevelImageDocument.css
+++ b/layout/style/TopLevelImageDocument.css
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/TopLevelVideoDocument.css b/layout/style/TopLevelVideoDocument.css
index 2c1f90310680..8b65aab5b227 100644
--- a/layout/style/TopLevelVideoDocument.css
+++ b/layout/style/TopLevelVideoDocument.css
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/URLExtraData.cpp b/layout/style/URLExtraData.cpp
index b55f276d0cd1..1eb22531bdad 100644
--- a/layout/style/URLExtraData.cpp
+++ b/layout/style/URLExtraData.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/URLExtraData.h b/layout/style/URLExtraData.h
index 6f2c3eafa46c..c74e459ef36e 100644
--- a/layout/style/URLExtraData.h
+++ b/layout/style/URLExtraData.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/contenteditable.css b/layout/style/contenteditable.css
index 8acf3837fd6a..4bfb0382b6a2 100644
--- a/layout/style/contenteditable.css
+++ b/layout/style/contenteditable.css
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/moz.build b/layout/style/moz.build
index 936047748ae5..63c72fdb0004 100644
--- a/layout/style/moz.build
+++ b/layout/style/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/style/nsAnimationManager.cpp b/layout/style/nsAnimationManager.cpp
index 9e13af1ce674..4ac056f60ee0 100644
--- a/layout/style/nsAnimationManager.cpp
+++ b/layout/style/nsAnimationManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsAnimationManager.h b/layout/style/nsAnimationManager.h
index c3a699a8537b..8df22f742fad 100644
--- a/layout/style/nsAnimationManager.h
+++ b/layout/style/nsAnimationManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsCSSProps.cpp b/layout/style/nsCSSProps.cpp
index 96910a77bf59..9c85021ef243 100644
--- a/layout/style/nsCSSProps.cpp
+++ b/layout/style/nsCSSProps.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsCSSProps.h b/layout/style/nsCSSProps.h
index 6f7d8564fd6d..d18401767c9a 100644
--- a/layout/style/nsCSSProps.h
+++ b/layout/style/nsCSSProps.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsCSSValue.cpp b/layout/style/nsCSSValue.cpp
index a9c95c450b50..4bc4c39eec84 100644
--- a/layout/style/nsCSSValue.cpp
+++ b/layout/style/nsCSSValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsCSSValue.h b/layout/style/nsCSSValue.h
index fdbf8fe22c87..3d399633eee0 100644
--- a/layout/style/nsCSSValue.h
+++ b/layout/style/nsCSSValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsCSSVisitedDependentPropList.h b/layout/style/nsCSSVisitedDependentPropList.h
index ccdbfa49d409..ab8b750c5c61 100644
--- a/layout/style/nsCSSVisitedDependentPropList.h
+++ b/layout/style/nsCSSVisitedDependentPropList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsChangeHint.h b/layout/style/nsChangeHint.h
index c650708d1e1f..eaf0a2b044c6 100644
--- a/layout/style/nsChangeHint.h
+++ b/layout/style/nsChangeHint.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsComputedDOMStyle.cpp b/layout/style/nsComputedDOMStyle.cpp
index 5019198e4c48..338a142af46c 100644
--- a/layout/style/nsComputedDOMStyle.cpp
+++ b/layout/style/nsComputedDOMStyle.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsComputedDOMStyle.h b/layout/style/nsComputedDOMStyle.h
index 24778fcf1b3a..2e286f700258 100644
--- a/layout/style/nsComputedDOMStyle.h
+++ b/layout/style/nsComputedDOMStyle.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsDOMCSSAttrDeclaration.cpp b/layout/style/nsDOMCSSAttrDeclaration.cpp
index 3d9049c74a92..00212493964c 100644
--- a/layout/style/nsDOMCSSAttrDeclaration.cpp
+++ b/layout/style/nsDOMCSSAttrDeclaration.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsDOMCSSAttrDeclaration.h b/layout/style/nsDOMCSSAttrDeclaration.h
index 43ab8ddf5f73..132a02a54621 100644
--- a/layout/style/nsDOMCSSAttrDeclaration.h
+++ b/layout/style/nsDOMCSSAttrDeclaration.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsDOMCSSDeclaration.cpp b/layout/style/nsDOMCSSDeclaration.cpp
index b9812e7677c2..da08e0643a02 100644
--- a/layout/style/nsDOMCSSDeclaration.cpp
+++ b/layout/style/nsDOMCSSDeclaration.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsDOMCSSDeclaration.h b/layout/style/nsDOMCSSDeclaration.h
index 1b80bbea8644..4aa3ebbacb64 100644
--- a/layout/style/nsDOMCSSDeclaration.h
+++ b/layout/style/nsDOMCSSDeclaration.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsDOMCSSValueList.cpp b/layout/style/nsDOMCSSValueList.cpp
index 6cee83e50902..739ce57a6735 100644
--- a/layout/style/nsDOMCSSValueList.cpp
+++ b/layout/style/nsDOMCSSValueList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsDOMCSSValueList.h b/layout/style/nsDOMCSSValueList.h
index 28ae97d8a21f..5a8e3afc3646 100644
--- a/layout/style/nsDOMCSSValueList.h
+++ b/layout/style/nsDOMCSSValueList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsFontFaceLoader.cpp b/layout/style/nsFontFaceLoader.cpp
index 32278b123dd5..6e5c21856480 100644
--- a/layout/style/nsFontFaceLoader.cpp
+++ b/layout/style/nsFontFaceLoader.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsFontFaceLoader.h b/layout/style/nsFontFaceLoader.h
index c9bfca11724b..2ebc046d9a0f 100644
--- a/layout/style/nsFontFaceLoader.h
+++ b/layout/style/nsFontFaceLoader.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsFontFaceUtils.cpp b/layout/style/nsFontFaceUtils.cpp
index 006293f2a268..8d5ad9ef47c0 100644
--- a/layout/style/nsFontFaceUtils.cpp
+++ b/layout/style/nsFontFaceUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsFontFaceUtils.h b/layout/style/nsFontFaceUtils.h
index d753ea3ee2e3..512ff98bd9e6 100644
--- a/layout/style/nsFontFaceUtils.h
+++ b/layout/style/nsFontFaceUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsICSSDeclaration.cpp b/layout/style/nsICSSDeclaration.cpp
index e08377138a3b..f7a151ff90c4 100644
--- a/layout/style/nsICSSDeclaration.cpp
+++ b/layout/style/nsICSSDeclaration.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsICSSDeclaration.h b/layout/style/nsICSSDeclaration.h
index dfe5ff796342..5c98842b4c19 100644
--- a/layout/style/nsICSSDeclaration.h
+++ b/layout/style/nsICSSDeclaration.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsICSSLoaderObserver.h b/layout/style/nsICSSLoaderObserver.h
index 5745db95b7a0..26469705a968 100644
--- a/layout/style/nsICSSLoaderObserver.h
+++ b/layout/style/nsICSSLoaderObserver.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsIPreloadedStyleSheet.idl b/layout/style/nsIPreloadedStyleSheet.idl
index ad617ae4e334..35d5d4ba4997 100644
--- a/layout/style/nsIPreloadedStyleSheet.idl
+++ b/layout/style/nsIPreloadedStyleSheet.idl
@@ -1,4 +1,3 @@
-/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsIStyleSheetService.idl b/layout/style/nsIStyleSheetService.idl
index 93d6795fe285..8861485f82dc 100644
--- a/layout/style/nsIStyleSheetService.idl
+++ b/layout/style/nsIStyleSheetService.idl
@@ -1,4 +1,3 @@
-/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsMediaFeatures.cpp b/layout/style/nsMediaFeatures.cpp
index bcfd66022bf3..93eafd4b98be 100644
--- a/layout/style/nsMediaFeatures.cpp
+++ b/layout/style/nsMediaFeatures.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsROCSSPrimitiveValue.cpp b/layout/style/nsROCSSPrimitiveValue.cpp
index 319ad1a85638..a98259eb7714 100644
--- a/layout/style/nsROCSSPrimitiveValue.cpp
+++ b/layout/style/nsROCSSPrimitiveValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsROCSSPrimitiveValue.h b/layout/style/nsROCSSPrimitiveValue.h
index 77536a695599..71c0a154bdb2 100644
--- a/layout/style/nsROCSSPrimitiveValue.h
+++ b/layout/style/nsROCSSPrimitiveValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleAutoArray.h b/layout/style/nsStyleAutoArray.h
index 00a794619992..6c4eb6adc151 100644
--- a/layout/style/nsStyleAutoArray.h
+++ b/layout/style/nsStyleAutoArray.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleChangeList.cpp b/layout/style/nsStyleChangeList.cpp
index 5940e4f62018..71927d6d393d 100644
--- a/layout/style/nsStyleChangeList.cpp
+++ b/layout/style/nsStyleChangeList.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleChangeList.h b/layout/style/nsStyleChangeList.h
index ead404caec0a..cad1677d3274 100644
--- a/layout/style/nsStyleChangeList.h
+++ b/layout/style/nsStyleChangeList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleConsts.h b/layout/style/nsStyleConsts.h
index fa1d09d2df8d..ac10bce931d8 100644
--- a/layout/style/nsStyleConsts.h
+++ b/layout/style/nsStyleConsts.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleSheetService.cpp b/layout/style/nsStyleSheetService.cpp
index 730728e0cb59..445ca505e091 100644
--- a/layout/style/nsStyleSheetService.cpp
+++ b/layout/style/nsStyleSheetService.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleSheetService.h b/layout/style/nsStyleSheetService.h
index 86a676730282..4342cd44e7c1 100644
--- a/layout/style/nsStyleSheetService.h
+++ b/layout/style/nsStyleSheetService.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleStruct.cpp b/layout/style/nsStyleStruct.cpp
index dac94d0e79fe..c0cfcfc0dd97 100644
--- a/layout/style/nsStyleStruct.cpp
+++ b/layout/style/nsStyleStruct.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleStruct.h b/layout/style/nsStyleStruct.h
index 43f2791f786f..8aa4d7b6cfc1 100644
--- a/layout/style/nsStyleStruct.h
+++ b/layout/style/nsStyleStruct.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleStructFwd.h b/layout/style/nsStyleStructFwd.h
index dbd7df308dd7..aa4c3a69b44a 100644
--- a/layout/style/nsStyleStructFwd.h
+++ b/layout/style/nsStyleStructFwd.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleStructInlines.h b/layout/style/nsStyleStructInlines.h
index fdaadf399fe6..16c176562ca9 100644
--- a/layout/style/nsStyleStructInlines.h
+++ b/layout/style/nsStyleStructInlines.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleStructList.h b/layout/style/nsStyleStructList.h
index 384374f4df9d..f922f95fca8e 100644
--- a/layout/style/nsStyleStructList.h
+++ b/layout/style/nsStyleStructList.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleTransformMatrix.cpp b/layout/style/nsStyleTransformMatrix.cpp
index 07c5830f7351..872200502f0b 100644
--- a/layout/style/nsStyleTransformMatrix.cpp
+++ b/layout/style/nsStyleTransformMatrix.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleTransformMatrix.h b/layout/style/nsStyleTransformMatrix.h
index f7e98d62992a..600edbb6b426 100644
--- a/layout/style/nsStyleTransformMatrix.h
+++ b/layout/style/nsStyleTransformMatrix.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleUtil.cpp b/layout/style/nsStyleUtil.cpp
index 42f7252bf612..96784d536332 100644
--- a/layout/style/nsStyleUtil.cpp
+++ b/layout/style/nsStyleUtil.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsStyleUtil.h b/layout/style/nsStyleUtil.h
index 675b33ce6623..8a0dc9c4fa40 100644
--- a/layout/style/nsStyleUtil.h
+++ b/layout/style/nsStyleUtil.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsTransitionManager.cpp b/layout/style/nsTransitionManager.cpp
index 81e333386049..591c58c8ab4f 100644
--- a/layout/style/nsTransitionManager.cpp
+++ b/layout/style/nsTransitionManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/nsTransitionManager.h b/layout/style/nsTransitionManager.h
index 8ac528b5875f..959e86db3077 100644
--- a/layout/style/nsTransitionManager.h
+++ b/layout/style/nsTransitionManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/ParseCSS.cpp b/layout/style/test/ParseCSS.cpp
index db78506937d4..d90fd1658c38 100644
--- a/layout/style/test/ParseCSS.cpp
+++ b/layout/style/test/ParseCSS.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=8:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/descriptor_database.js b/layout/style/test/descriptor_database.js
index 9b317892d77a..eebee10df77b 100644
--- a/layout/style/test/descriptor_database.js
+++ b/layout/style/test/descriptor_database.js
@@ -1,5 +1,3 @@
-/* -*- tab-width: 4; indent-tabs-mode: nil; js-indent-level: 4 -*- */
-/* vim: set shiftwidth=4 tabstop=4 autoindent cindent noexpandtab: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/flexbox_layout_testcases.js b/layout/style/test/flexbox_layout_testcases.js
index c8990877ab85..2ad8036fb7aa 100644
--- a/layout/style/test/flexbox_layout_testcases.js
+++ b/layout/style/test/flexbox_layout_testcases.js
@@ -1,6 +1,3 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set ts=2 sw=2 sts=2 et: */
-
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/gtest/ImportScannerTest.cpp b/layout/style/test/gtest/ImportScannerTest.cpp
index dca8c1d5d639..2b178946e4d1 100644
--- a/layout/style/test/gtest/ImportScannerTest.cpp
+++ b/layout/style/test/gtest/ImportScannerTest.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/gtest/StyloParsingBench.cpp b/layout/style/test/gtest/StyloParsingBench.cpp
index 40bae97c3b8b..4c311261e260 100644
--- a/layout/style/test/gtest/StyloParsingBench.cpp
+++ b/layout/style/test/gtest/StyloParsingBench.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/gtest/moz.build b/layout/style/test/gtest/moz.build
index aa3adbc9abc0..11ba01e19fa0 100644
--- a/layout/style/test/gtest/moz.build
+++ b/layout/style/test/gtest/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/style/test/moz.build b/layout/style/test/moz.build
index 5b375d631eb6..c02b9146e892 100644
--- a/layout/style/test/moz.build
+++ b/layout/style/test/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/style/test/property_database.js b/layout/style/test/property_database.js
index cb7df12cddcf..addc4b50c579 100644
--- a/layout/style/test/property_database.js
+++ b/layout/style/test/property_database.js
@@ -1,6 +1,4 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* eslint-disable dot-notation */
-/* vim: set ts=2 sw=2 sts=2 et: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/test/test_cascade.html b/layout/style/test/test_cascade.html
index 57be3480bdb8..2e8d59fb6a28 100644
--- a/layout/style/test/test_cascade.html
+++ b/layout/style/test/test_cascade.html
@@ -1,5 +1,4 @@
 <!DOCTYPE HTML>
-<!-- vim: set shiftwidth=4 tabstop=8 autoindent expandtab: -->
 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
diff --git a/layout/style/typedom/CSSColor.cpp b/layout/style/typedom/CSSColor.cpp
index 701d97f9d8a1..42fcb4aafc6e 100644
--- a/layout/style/typedom/CSSColor.cpp
+++ b/layout/style/typedom/CSSColor.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSColor.h b/layout/style/typedom/CSSColor.h
index c1c59262e03e..ceccb60e2b0c 100644
--- a/layout/style/typedom/CSSColor.h
+++ b/layout/style/typedom/CSSColor.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSColorValue.cpp b/layout/style/typedom/CSSColorValue.cpp
index fd7a95dfce51..80dde6fafe88 100644
--- a/layout/style/typedom/CSSColorValue.cpp
+++ b/layout/style/typedom/CSSColorValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSColorValue.h b/layout/style/typedom/CSSColorValue.h
index 39390fee4253..dee53babdf06 100644
--- a/layout/style/typedom/CSSColorValue.h
+++ b/layout/style/typedom/CSSColorValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSHSL.cpp b/layout/style/typedom/CSSHSL.cpp
index 34aff23e77a3..65dd04f7ecde 100644
--- a/layout/style/typedom/CSSHSL.cpp
+++ b/layout/style/typedom/CSSHSL.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSHSL.h b/layout/style/typedom/CSSHSL.h
index 2bdd9e7e44aa..84326de3e259 100644
--- a/layout/style/typedom/CSSHSL.h
+++ b/layout/style/typedom/CSSHSL.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSHWB.cpp b/layout/style/typedom/CSSHWB.cpp
index bcb03f8380c9..18350f5b57c4 100644
--- a/layout/style/typedom/CSSHWB.cpp
+++ b/layout/style/typedom/CSSHWB.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSHWB.h b/layout/style/typedom/CSSHWB.h
index 8b005bab7320..fffaf729916f 100644
--- a/layout/style/typedom/CSSHWB.h
+++ b/layout/style/typedom/CSSHWB.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSImageValue.cpp b/layout/style/typedom/CSSImageValue.cpp
index c2cd05b24fcd..36eee761ec76 100644
--- a/layout/style/typedom/CSSImageValue.cpp
+++ b/layout/style/typedom/CSSImageValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSImageValue.h b/layout/style/typedom/CSSImageValue.h
index 23e5c080a8dc..23f3948feb1a 100644
--- a/layout/style/typedom/CSSImageValue.h
+++ b/layout/style/typedom/CSSImageValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSKeywordValue.cpp b/layout/style/typedom/CSSKeywordValue.cpp
index ba0bb779a96a..e41fdf039744 100644
--- a/layout/style/typedom/CSSKeywordValue.cpp
+++ b/layout/style/typedom/CSSKeywordValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSKeywordValue.h b/layout/style/typedom/CSSKeywordValue.h
index d0ceab561ef0..23ede1d659ff 100644
--- a/layout/style/typedom/CSSKeywordValue.h
+++ b/layout/style/typedom/CSSKeywordValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSLCH.cpp b/layout/style/typedom/CSSLCH.cpp
index c7d7a10cba29..e743220b299e 100644
--- a/layout/style/typedom/CSSLCH.cpp
+++ b/layout/style/typedom/CSSLCH.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSLCH.h b/layout/style/typedom/CSSLCH.h
index b3a4ac4e0e23..5fa33899f9ee 100644
--- a/layout/style/typedom/CSSLCH.h
+++ b/layout/style/typedom/CSSLCH.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSLab.cpp b/layout/style/typedom/CSSLab.cpp
index 73b54dc54b3d..7a88b0cdabd1 100644
--- a/layout/style/typedom/CSSLab.cpp
+++ b/layout/style/typedom/CSSLab.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSLab.h b/layout/style/typedom/CSSLab.h
index c8902f078640..bbd79ed353a0 100644
--- a/layout/style/typedom/CSSLab.h
+++ b/layout/style/typedom/CSSLab.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathClamp.cpp b/layout/style/typedom/CSSMathClamp.cpp
index b2873f166077..81ad88bd11d7 100644
--- a/layout/style/typedom/CSSMathClamp.cpp
+++ b/layout/style/typedom/CSSMathClamp.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathClamp.h b/layout/style/typedom/CSSMathClamp.h
index b1cdc0a88753..c0152a933ca9 100644
--- a/layout/style/typedom/CSSMathClamp.h
+++ b/layout/style/typedom/CSSMathClamp.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathInvert.cpp b/layout/style/typedom/CSSMathInvert.cpp
index 78f8d3c2f26d..28bb0ff70cb3 100644
--- a/layout/style/typedom/CSSMathInvert.cpp
+++ b/layout/style/typedom/CSSMathInvert.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathInvert.h b/layout/style/typedom/CSSMathInvert.h
index 862840496670..1be364f929cf 100644
--- a/layout/style/typedom/CSSMathInvert.h
+++ b/layout/style/typedom/CSSMathInvert.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathMax.cpp b/layout/style/typedom/CSSMathMax.cpp
index b0783e3c544c..0b1175246dfe 100644
--- a/layout/style/typedom/CSSMathMax.cpp
+++ b/layout/style/typedom/CSSMathMax.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathMax.h b/layout/style/typedom/CSSMathMax.h
index ad252aad03dc..b1828967cfc5 100644
--- a/layout/style/typedom/CSSMathMax.h
+++ b/layout/style/typedom/CSSMathMax.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathMin.cpp b/layout/style/typedom/CSSMathMin.cpp
index b9669f1715fc..7dcbca5f55e1 100644
--- a/layout/style/typedom/CSSMathMin.cpp
+++ b/layout/style/typedom/CSSMathMin.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathMin.h b/layout/style/typedom/CSSMathMin.h
index 809a5254c2fd..87a617f11bae 100644
--- a/layout/style/typedom/CSSMathMin.h
+++ b/layout/style/typedom/CSSMathMin.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathNegate.cpp b/layout/style/typedom/CSSMathNegate.cpp
index 52be7eff025d..1f0310c7f50d 100644
--- a/layout/style/typedom/CSSMathNegate.cpp
+++ b/layout/style/typedom/CSSMathNegate.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathNegate.h b/layout/style/typedom/CSSMathNegate.h
index ab3a94925383..2e4f169128f2 100644
--- a/layout/style/typedom/CSSMathNegate.h
+++ b/layout/style/typedom/CSSMathNegate.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathProduct.cpp b/layout/style/typedom/CSSMathProduct.cpp
index ea37ce239484..ae7f83d66b0a 100644
--- a/layout/style/typedom/CSSMathProduct.cpp
+++ b/layout/style/typedom/CSSMathProduct.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathProduct.h b/layout/style/typedom/CSSMathProduct.h
index cace3ec38049..1b80f2b69bf5 100644
--- a/layout/style/typedom/CSSMathProduct.h
+++ b/layout/style/typedom/CSSMathProduct.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathSum.cpp b/layout/style/typedom/CSSMathSum.cpp
index cfcd4e0eac35..d23b0c3392c4 100644
--- a/layout/style/typedom/CSSMathSum.cpp
+++ b/layout/style/typedom/CSSMathSum.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathSum.h b/layout/style/typedom/CSSMathSum.h
index 6c97933edd0f..78fd66f6d00c 100644
--- a/layout/style/typedom/CSSMathSum.h
+++ b/layout/style/typedom/CSSMathSum.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathValue.cpp b/layout/style/typedom/CSSMathValue.cpp
index cfe0155e9759..d0c83f1e2c19 100644
--- a/layout/style/typedom/CSSMathValue.cpp
+++ b/layout/style/typedom/CSSMathValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMathValue.h b/layout/style/typedom/CSSMathValue.h
index 1a9f4704c691..44178d7d2283 100644
--- a/layout/style/typedom/CSSMathValue.h
+++ b/layout/style/typedom/CSSMathValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMatrixComponent.cpp b/layout/style/typedom/CSSMatrixComponent.cpp
index 76aec08c0785..83691a17df7b 100644
--- a/layout/style/typedom/CSSMatrixComponent.cpp
+++ b/layout/style/typedom/CSSMatrixComponent.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSMatrixComponent.h b/layout/style/typedom/CSSMatrixComponent.h
index 913bb86c9aaf..8cd340e67060 100644
--- a/layout/style/typedom/CSSMatrixComponent.h
+++ b/layout/style/typedom/CSSMatrixComponent.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSNumericArray.cpp b/layout/style/typedom/CSSNumericArray.cpp
index 6a251376638b..2ef2237c8876 100644
--- a/layout/style/typedom/CSSNumericArray.cpp
+++ b/layout/style/typedom/CSSNumericArray.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSNumericArray.h b/layout/style/typedom/CSSNumericArray.h
index 67a6b9991cb1..cc81b701c21a 100644
--- a/layout/style/typedom/CSSNumericArray.h
+++ b/layout/style/typedom/CSSNumericArray.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSNumericValue.cpp b/layout/style/typedom/CSSNumericValue.cpp
index 2b6f7664ef0a..3c5134617270 100644
--- a/layout/style/typedom/CSSNumericValue.cpp
+++ b/layout/style/typedom/CSSNumericValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSNumericValue.h b/layout/style/typedom/CSSNumericValue.h
index b678cba42c16..61bb1b0bc06d 100644
--- a/layout/style/typedom/CSSNumericValue.h
+++ b/layout/style/typedom/CSSNumericValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSOKLCH.cpp b/layout/style/typedom/CSSOKLCH.cpp
index 3c96ca617f68..7ee982553e1a 100644
--- a/layout/style/typedom/CSSOKLCH.cpp
+++ b/layout/style/typedom/CSSOKLCH.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSOKLCH.h b/layout/style/typedom/CSSOKLCH.h
index 9599b884de53..5b40fe29cc73 100644
--- a/layout/style/typedom/CSSOKLCH.h
+++ b/layout/style/typedom/CSSOKLCH.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSOKLab.cpp b/layout/style/typedom/CSSOKLab.cpp
index 740671c5a74f..b6b16fa83cea 100644
--- a/layout/style/typedom/CSSOKLab.cpp
+++ b/layout/style/typedom/CSSOKLab.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSOKLab.h b/layout/style/typedom/CSSOKLab.h
index f183561d78ff..5e3115cf24f5 100644
--- a/layout/style/typedom/CSSOKLab.h
+++ b/layout/style/typedom/CSSOKLab.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSPerspective.cpp b/layout/style/typedom/CSSPerspective.cpp
index 33eb5620851d..24546ef3d40b 100644
--- a/layout/style/typedom/CSSPerspective.cpp
+++ b/layout/style/typedom/CSSPerspective.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSPerspective.h b/layout/style/typedom/CSSPerspective.h
index 865412490c35..3c5404db6899 100644
--- a/layout/style/typedom/CSSPerspective.h
+++ b/layout/style/typedom/CSSPerspective.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSRGB.cpp b/layout/style/typedom/CSSRGB.cpp
index 0a3706d34885..e6d2d5f1f1a1 100644
--- a/layout/style/typedom/CSSRGB.cpp
+++ b/layout/style/typedom/CSSRGB.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSRGB.h b/layout/style/typedom/CSSRGB.h
index c4bf3fe4ba78..adb37f725c66 100644
--- a/layout/style/typedom/CSSRGB.h
+++ b/layout/style/typedom/CSSRGB.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSRotate.cpp b/layout/style/typedom/CSSRotate.cpp
index e33f316c8fed..caa3829b4557 100644
--- a/layout/style/typedom/CSSRotate.cpp
+++ b/layout/style/typedom/CSSRotate.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSRotate.h b/layout/style/typedom/CSSRotate.h
index 13cf87af3e6c..a16f5841a984 100644
--- a/layout/style/typedom/CSSRotate.h
+++ b/layout/style/typedom/CSSRotate.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSScale.cpp b/layout/style/typedom/CSSScale.cpp
index 09f083a20003..7a3a9ae9fe9a 100644
--- a/layout/style/typedom/CSSScale.cpp
+++ b/layout/style/typedom/CSSScale.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSScale.h b/layout/style/typedom/CSSScale.h
index 0519497420e9..c9b4b634afb1 100644
--- a/layout/style/typedom/CSSScale.h
+++ b/layout/style/typedom/CSSScale.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSSkew.cpp b/layout/style/typedom/CSSSkew.cpp
index 3b73fb662f0f..843c9d7df9f2 100644
--- a/layout/style/typedom/CSSSkew.cpp
+++ b/layout/style/typedom/CSSSkew.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSSkew.h b/layout/style/typedom/CSSSkew.h
index ad0fd0f4fb27..d026c7f5b2ae 100644
--- a/layout/style/typedom/CSSSkew.h
+++ b/layout/style/typedom/CSSSkew.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSSkewX.cpp b/layout/style/typedom/CSSSkewX.cpp
index 8768ae6ec49e..d1182e47c9e0 100644
--- a/layout/style/typedom/CSSSkewX.cpp
+++ b/layout/style/typedom/CSSSkewX.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSSkewX.h b/layout/style/typedom/CSSSkewX.h
index 2336ea08a4d3..c5bd1f6d1ce6 100644
--- a/layout/style/typedom/CSSSkewX.h
+++ b/layout/style/typedom/CSSSkewX.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSSkewY.cpp b/layout/style/typedom/CSSSkewY.cpp
index dc3586a55e42..fe8ee26c28ae 100644
--- a/layout/style/typedom/CSSSkewY.cpp
+++ b/layout/style/typedom/CSSSkewY.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSSkewY.h b/layout/style/typedom/CSSSkewY.h
index b7e0647da8bf..ff3382c75a10 100644
--- a/layout/style/typedom/CSSSkewY.h
+++ b/layout/style/typedom/CSSSkewY.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSStyleValue.cpp b/layout/style/typedom/CSSStyleValue.cpp
index 58e91c75d916..1fae8370b871 100644
--- a/layout/style/typedom/CSSStyleValue.cpp
+++ b/layout/style/typedom/CSSStyleValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSStyleValue.h b/layout/style/typedom/CSSStyleValue.h
index 438ca865ec72..76a211a6b3a6 100644
--- a/layout/style/typedom/CSSStyleValue.h
+++ b/layout/style/typedom/CSSStyleValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSTransformComponent.cpp b/layout/style/typedom/CSSTransformComponent.cpp
index a931723f11ff..415a3832dfe3 100644
--- a/layout/style/typedom/CSSTransformComponent.cpp
+++ b/layout/style/typedom/CSSTransformComponent.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSTransformComponent.h b/layout/style/typedom/CSSTransformComponent.h
index fb5826a836d8..db7f18882ce6 100644
--- a/layout/style/typedom/CSSTransformComponent.h
+++ b/layout/style/typedom/CSSTransformComponent.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSTransformValue.cpp b/layout/style/typedom/CSSTransformValue.cpp
index 0719f21a726e..44384461e666 100644
--- a/layout/style/typedom/CSSTransformValue.cpp
+++ b/layout/style/typedom/CSSTransformValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSTransformValue.h b/layout/style/typedom/CSSTransformValue.h
index d90fffc94c41..8658a8c31293 100644
--- a/layout/style/typedom/CSSTransformValue.h
+++ b/layout/style/typedom/CSSTransformValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSTranslate.cpp b/layout/style/typedom/CSSTranslate.cpp
index 167c90ff9aa7..48971ad0dc8d 100644
--- a/layout/style/typedom/CSSTranslate.cpp
+++ b/layout/style/typedom/CSSTranslate.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSTranslate.h b/layout/style/typedom/CSSTranslate.h
index e34f4b80f73b..77c5ea4df1e4 100644
--- a/layout/style/typedom/CSSTranslate.h
+++ b/layout/style/typedom/CSSTranslate.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSUnitValue.cpp b/layout/style/typedom/CSSUnitValue.cpp
index 71301f89cfcf..2fb20010f60a 100644
--- a/layout/style/typedom/CSSUnitValue.cpp
+++ b/layout/style/typedom/CSSUnitValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSUnitValue.h b/layout/style/typedom/CSSUnitValue.h
index a618a9934a69..5d3ce5e16385 100644
--- a/layout/style/typedom/CSSUnitValue.h
+++ b/layout/style/typedom/CSSUnitValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSUnparsedValue.cpp b/layout/style/typedom/CSSUnparsedValue.cpp
index 4bc85b98cfaf..1f66d7c52424 100644
--- a/layout/style/typedom/CSSUnparsedValue.cpp
+++ b/layout/style/typedom/CSSUnparsedValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSUnparsedValue.h b/layout/style/typedom/CSSUnparsedValue.h
index 4a6089d0ad93..adec13660ce1 100644
--- a/layout/style/typedom/CSSUnparsedValue.h
+++ b/layout/style/typedom/CSSUnparsedValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSUnsupportedValue.cpp b/layout/style/typedom/CSSUnsupportedValue.cpp
index 2cb985044f3b..c61561221a59 100644
--- a/layout/style/typedom/CSSUnsupportedValue.cpp
+++ b/layout/style/typedom/CSSUnsupportedValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSUnsupportedValue.h b/layout/style/typedom/CSSUnsupportedValue.h
index 4cf1df144e26..4ef0cebfa339 100644
--- a/layout/style/typedom/CSSUnsupportedValue.h
+++ b/layout/style/typedom/CSSUnsupportedValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSVariableReferenceValue.cpp b/layout/style/typedom/CSSVariableReferenceValue.cpp
index a91a6d9d3bd2..4d22ab5b5723 100644
--- a/layout/style/typedom/CSSVariableReferenceValue.cpp
+++ b/layout/style/typedom/CSSVariableReferenceValue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/CSSVariableReferenceValue.h b/layout/style/typedom/CSSVariableReferenceValue.h
index e058e2bbfe0e..6b26db71b3a8 100644
--- a/layout/style/typedom/CSSVariableReferenceValue.h
+++ b/layout/style/typedom/CSSVariableReferenceValue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim:set ts=2 sw=2 sts=2 et cindent: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/StylePropertyMap.cpp b/layout/style/typedom/StylePropertyMap.cpp
index 2dcb88b1a3cb..f11e56581182 100644
--- a/layout/style/typedom/StylePropertyMap.cpp
+++ b/layout/style/typedom/StylePropertyMap.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/StylePropertyMap.h b/layout/style/typedom/StylePropertyMap.h
index 7c4de7b999d5..fcb2d5fa0449 100644
--- a/layout/style/typedom/StylePropertyMap.h
+++ b/layout/style/typedom/StylePropertyMap.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/StylePropertyMapReadOnly.cpp b/layout/style/typedom/StylePropertyMapReadOnly.cpp
index da49e97900a7..7a1f2d605c9b 100644
--- a/layout/style/typedom/StylePropertyMapReadOnly.cpp
+++ b/layout/style/typedom/StylePropertyMapReadOnly.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/StylePropertyMapReadOnly.h b/layout/style/typedom/StylePropertyMapReadOnly.h
index 23b4a016a91d..cfbd4f0f2028 100644
--- a/layout/style/typedom/StylePropertyMapReadOnly.h
+++ b/layout/style/typedom/StylePropertyMapReadOnly.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/style/typedom/moz.build b/layout/style/typedom/moz.build
index 74600f4f66aa..a7397865e22a 100644
--- a/layout/style/typedom/moz.build
+++ b/layout/style/typedom/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/svg/AutoReferenceChainGuard.h b/layout/svg/AutoReferenceChainGuard.h
index 482f2140e95a..85b389457cbb 100644
--- a/layout/svg/AutoReferenceChainGuard.h
+++ b/layout/svg/AutoReferenceChainGuard.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/CSSClipPathInstance.cpp b/layout/svg/CSSClipPathInstance.cpp
index 6bf60a067a4c..3e070b2c2579 100644
--- a/layout/svg/CSSClipPathInstance.cpp
+++ b/layout/svg/CSSClipPathInstance.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/CSSClipPathInstance.h b/layout/svg/CSSClipPathInstance.h
index 2cec8c125f47..d7f673b9f8c6 100644
--- a/layout/svg/CSSClipPathInstance.h
+++ b/layout/svg/CSSClipPathInstance.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/CSSFilterInstance.cpp b/layout/svg/CSSFilterInstance.cpp
index 6a9ace441a5e..7a6cbc08fb9a 100644
--- a/layout/svg/CSSFilterInstance.cpp
+++ b/layout/svg/CSSFilterInstance.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/CSSFilterInstance.h b/layout/svg/CSSFilterInstance.h
index 7d2b567592f0..4c7ccaf45491 100644
--- a/layout/svg/CSSFilterInstance.h
+++ b/layout/svg/CSSFilterInstance.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/DisplaySVGItem.cpp b/layout/svg/DisplaySVGItem.cpp
index dfc77c674703..aeb54b762035 100644
--- a/layout/svg/DisplaySVGItem.cpp
+++ b/layout/svg/DisplaySVGItem.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/DisplaySVGItem.h b/layout/svg/DisplaySVGItem.h
index 1ff20746951a..b46e52d87885 100644
--- a/layout/svg/DisplaySVGItem.h
+++ b/layout/svg/DisplaySVGItem.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/FilterInstance.cpp b/layout/svg/FilterInstance.cpp
index 904527d3f39e..3beae446ca1c 100644
--- a/layout/svg/FilterInstance.cpp
+++ b/layout/svg/FilterInstance.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/FilterInstance.h b/layout/svg/FilterInstance.h
index b4e5c5c3e592..3baee1cebce0 100644
--- a/layout/svg/FilterInstance.h
+++ b/layout/svg/FilterInstance.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/ISVGDisplayableFrame.h b/layout/svg/ISVGDisplayableFrame.h
index 7a657406e2c8..6aafb223ab9a 100644
--- a/layout/svg/ISVGDisplayableFrame.h
+++ b/layout/svg/ISVGDisplayableFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/ISVGSVGFrame.h b/layout/svg/ISVGSVGFrame.h
index bf48c53cc80e..aadca63cc82e 100644
--- a/layout/svg/ISVGSVGFrame.h
+++ b/layout/svg/ISVGSVGFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGAFrame.cpp b/layout/svg/SVGAFrame.cpp
index 4ec8740939ac..e79d2d9148a6 100644
--- a/layout/svg/SVGAFrame.cpp
+++ b/layout/svg/SVGAFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGClipPathFrame.cpp b/layout/svg/SVGClipPathFrame.cpp
index 0270043d21ea..d45d3db8f750 100644
--- a/layout/svg/SVGClipPathFrame.cpp
+++ b/layout/svg/SVGClipPathFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGClipPathFrame.h b/layout/svg/SVGClipPathFrame.h
index 889ec3098c41..ecd529145518 100644
--- a/layout/svg/SVGClipPathFrame.h
+++ b/layout/svg/SVGClipPathFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGContainerFrame.cpp b/layout/svg/SVGContainerFrame.cpp
index 43a0343e9c51..890291f9be74 100644
--- a/layout/svg/SVGContainerFrame.cpp
+++ b/layout/svg/SVGContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGContainerFrame.h b/layout/svg/SVGContainerFrame.h
index 6c174b921e0b..baa34b71a0d8 100644
--- a/layout/svg/SVGContainerFrame.h
+++ b/layout/svg/SVGContainerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGContextPaint.cpp b/layout/svg/SVGContextPaint.cpp
index dd2d4584f99a..3df8728978c1 100644
--- a/layout/svg/SVGContextPaint.cpp
+++ b/layout/svg/SVGContextPaint.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGContextPaint.h b/layout/svg/SVGContextPaint.h
index 47e30abc22de..97111b6e2b5a 100644
--- a/layout/svg/SVGContextPaint.h
+++ b/layout/svg/SVGContextPaint.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFEContainerFrame.cpp b/layout/svg/SVGFEContainerFrame.cpp
index bdb0439c2a40..8c8255ee8949 100644
--- a/layout/svg/SVGFEContainerFrame.cpp
+++ b/layout/svg/SVGFEContainerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFEImageFrame.cpp b/layout/svg/SVGFEImageFrame.cpp
index 654d760ef7e0..865d77596576 100644
--- a/layout/svg/SVGFEImageFrame.cpp
+++ b/layout/svg/SVGFEImageFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFELeafFrame.cpp b/layout/svg/SVGFELeafFrame.cpp
index 88c90f2036ab..7b5ea63b5bcd 100644
--- a/layout/svg/SVGFELeafFrame.cpp
+++ b/layout/svg/SVGFELeafFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFEUnstyledLeafFrame.cpp b/layout/svg/SVGFEUnstyledLeafFrame.cpp
index 98f35b184e07..e9cc3087e179 100644
--- a/layout/svg/SVGFEUnstyledLeafFrame.cpp
+++ b/layout/svg/SVGFEUnstyledLeafFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFilterFrame.cpp b/layout/svg/SVGFilterFrame.cpp
index a1453dc2dee0..52e50815dd4e 100644
--- a/layout/svg/SVGFilterFrame.cpp
+++ b/layout/svg/SVGFilterFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFilterFrame.h b/layout/svg/SVGFilterFrame.h
index d7a3d4bf8505..508a92dedefe 100644
--- a/layout/svg/SVGFilterFrame.h
+++ b/layout/svg/SVGFilterFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFilterInstance.cpp b/layout/svg/SVGFilterInstance.cpp
index f83ce7494e47..6adf7ba97f1a 100644
--- a/layout/svg/SVGFilterInstance.cpp
+++ b/layout/svg/SVGFilterInstance.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGFilterInstance.h b/layout/svg/SVGFilterInstance.h
index e2de99f05165..bfb91406de4b 100644
--- a/layout/svg/SVGFilterInstance.h
+++ b/layout/svg/SVGFilterInstance.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGForeignObjectFrame.cpp b/layout/svg/SVGForeignObjectFrame.cpp
index 849ed112745a..0f79b0647656 100644
--- a/layout/svg/SVGForeignObjectFrame.cpp
+++ b/layout/svg/SVGForeignObjectFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGForeignObjectFrame.h b/layout/svg/SVGForeignObjectFrame.h
index e55878090536..f35cf986570e 100644
--- a/layout/svg/SVGForeignObjectFrame.h
+++ b/layout/svg/SVGForeignObjectFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGGFrame.cpp b/layout/svg/SVGGFrame.cpp
index d4b099dede74..c6af28667a8f 100644
--- a/layout/svg/SVGGFrame.cpp
+++ b/layout/svg/SVGGFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGGFrame.h b/layout/svg/SVGGFrame.h
index 0b4aece93713..b1e9becf7c98 100644
--- a/layout/svg/SVGGFrame.h
+++ b/layout/svg/SVGGFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGGeometryFrame.cpp b/layout/svg/SVGGeometryFrame.cpp
index e18276cfcf8c..60bd983b8542 100644
--- a/layout/svg/SVGGeometryFrame.cpp
+++ b/layout/svg/SVGGeometryFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGGeometryFrame.h b/layout/svg/SVGGeometryFrame.h
index 162cca275020..e601f6670039 100644
--- a/layout/svg/SVGGeometryFrame.h
+++ b/layout/svg/SVGGeometryFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGGradientFrame.cpp b/layout/svg/SVGGradientFrame.cpp
index f0660a4a102a..d95a51310ed7 100644
--- a/layout/svg/SVGGradientFrame.cpp
+++ b/layout/svg/SVGGradientFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGGradientFrame.h b/layout/svg/SVGGradientFrame.h
index 2f6d1e93ed9e..777fc5d2a83b 100644
--- a/layout/svg/SVGGradientFrame.h
+++ b/layout/svg/SVGGradientFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGImageContext.cpp b/layout/svg/SVGImageContext.cpp
index bfa25a80047f..ecbda963b75f 100644
--- a/layout/svg/SVGImageContext.cpp
+++ b/layout/svg/SVGImageContext.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGImageContext.h b/layout/svg/SVGImageContext.h
index 7bdd29f6b16d..159d9cbbd071 100644
--- a/layout/svg/SVGImageContext.h
+++ b/layout/svg/SVGImageContext.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGImageFrame.cpp b/layout/svg/SVGImageFrame.cpp
index 9a13458b732f..fef973bb3508 100644
--- a/layout/svg/SVGImageFrame.cpp
+++ b/layout/svg/SVGImageFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGImageFrame.h b/layout/svg/SVGImageFrame.h
index eac4619dca34..6ee5ecc58d4f 100644
--- a/layout/svg/SVGImageFrame.h
+++ b/layout/svg/SVGImageFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGInnerSVGFrame.cpp b/layout/svg/SVGInnerSVGFrame.cpp
index 0a547ccc94d8..936e83ad7603 100644
--- a/layout/svg/SVGInnerSVGFrame.cpp
+++ b/layout/svg/SVGInnerSVGFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGInnerSVGFrame.h b/layout/svg/SVGInnerSVGFrame.h
index 1db386f34451..c49615eef1b3 100644
--- a/layout/svg/SVGInnerSVGFrame.h
+++ b/layout/svg/SVGInnerSVGFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGIntegrationUtils.cpp b/layout/svg/SVGIntegrationUtils.cpp
index 746dea07e21f..a49c6858c1a1 100644
--- a/layout/svg/SVGIntegrationUtils.cpp
+++ b/layout/svg/SVGIntegrationUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGIntegrationUtils.h b/layout/svg/SVGIntegrationUtils.h
index 954a23f0965c..26b838d609be 100644
--- a/layout/svg/SVGIntegrationUtils.h
+++ b/layout/svg/SVGIntegrationUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGMarkerFrame.cpp b/layout/svg/SVGMarkerFrame.cpp
index 7d0b22aff141..1b02ae5bd2a6 100644
--- a/layout/svg/SVGMarkerFrame.cpp
+++ b/layout/svg/SVGMarkerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGMarkerFrame.h b/layout/svg/SVGMarkerFrame.h
index 2432f8107415..e6a369309cc7 100644
--- a/layout/svg/SVGMarkerFrame.h
+++ b/layout/svg/SVGMarkerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGMaskFrame.cpp b/layout/svg/SVGMaskFrame.cpp
index 87791c3d360a..258f562605c5 100644
--- a/layout/svg/SVGMaskFrame.cpp
+++ b/layout/svg/SVGMaskFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGMaskFrame.h b/layout/svg/SVGMaskFrame.h
index e28025c4ae69..73b6ac2f7fc3 100644
--- a/layout/svg/SVGMaskFrame.h
+++ b/layout/svg/SVGMaskFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGObserverUtils.cpp b/layout/svg/SVGObserverUtils.cpp
index d9b100d384f1..9d97e72a11cf 100644
--- a/layout/svg/SVGObserverUtils.cpp
+++ b/layout/svg/SVGObserverUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGObserverUtils.h b/layout/svg/SVGObserverUtils.h
index e455488a70d6..9690998eba48 100644
--- a/layout/svg/SVGObserverUtils.h
+++ b/layout/svg/SVGObserverUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGOuterSVGFrame.cpp b/layout/svg/SVGOuterSVGFrame.cpp
index 785f9e3fd827..4d909213af0b 100644
--- a/layout/svg/SVGOuterSVGFrame.cpp
+++ b/layout/svg/SVGOuterSVGFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGOuterSVGFrame.h b/layout/svg/SVGOuterSVGFrame.h
index cc8debda72f2..cdb29436564e 100644
--- a/layout/svg/SVGOuterSVGFrame.h
+++ b/layout/svg/SVGOuterSVGFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGPaintServerFrame.cpp b/layout/svg/SVGPaintServerFrame.cpp
index 6a2b337871b3..e26e5be24c55 100644
--- a/layout/svg/SVGPaintServerFrame.cpp
+++ b/layout/svg/SVGPaintServerFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGPaintServerFrame.h b/layout/svg/SVGPaintServerFrame.h
index 9cb0e5cff786..44e39113626d 100644
--- a/layout/svg/SVGPaintServerFrame.h
+++ b/layout/svg/SVGPaintServerFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGPatternFrame.cpp b/layout/svg/SVGPatternFrame.cpp
index b16f0fa1e5a0..f5e7759671e8 100644
--- a/layout/svg/SVGPatternFrame.cpp
+++ b/layout/svg/SVGPatternFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGPatternFrame.h b/layout/svg/SVGPatternFrame.h
index 77031406d956..6a6d5d591ab0 100644
--- a/layout/svg/SVGPatternFrame.h
+++ b/layout/svg/SVGPatternFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGStopFrame.cpp b/layout/svg/SVGStopFrame.cpp
index 897e4675f562..194a97b611c4 100644
--- a/layout/svg/SVGStopFrame.cpp
+++ b/layout/svg/SVGStopFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGSwitchFrame.cpp b/layout/svg/SVGSwitchFrame.cpp
index 4acbb2964976..407fb3f8b1e5 100644
--- a/layout/svg/SVGSwitchFrame.cpp
+++ b/layout/svg/SVGSwitchFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGSymbolFrame.cpp b/layout/svg/SVGSymbolFrame.cpp
index 8c0e53f0af8a..491a1e9c2ab4 100644
--- a/layout/svg/SVGSymbolFrame.cpp
+++ b/layout/svg/SVGSymbolFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGSymbolFrame.h b/layout/svg/SVGSymbolFrame.h
index 35a152b235a1..5e7cd7bb810d 100644
--- a/layout/svg/SVGSymbolFrame.h
+++ b/layout/svg/SVGSymbolFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGTextFrame.cpp b/layout/svg/SVGTextFrame.cpp
index cd790b1c9be1..04e0c77e78de 100644
--- a/layout/svg/SVGTextFrame.cpp
+++ b/layout/svg/SVGTextFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGTextFrame.h b/layout/svg/SVGTextFrame.h
index ad8a3897211f..d9d5b4a3c84b 100644
--- a/layout/svg/SVGTextFrame.h
+++ b/layout/svg/SVGTextFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGUseFrame.cpp b/layout/svg/SVGUseFrame.cpp
index a846af7aa03c..a47cd5406557 100644
--- a/layout/svg/SVGUseFrame.cpp
+++ b/layout/svg/SVGUseFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGUseFrame.h b/layout/svg/SVGUseFrame.h
index 919b29ff3344..fefdbe589e5e 100644
--- a/layout/svg/SVGUseFrame.h
+++ b/layout/svg/SVGUseFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGUtils.cpp b/layout/svg/SVGUtils.cpp
index 28072e75a3cc..ea70ffd5b772 100644
--- a/layout/svg/SVGUtils.cpp
+++ b/layout/svg/SVGUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGUtils.h b/layout/svg/SVGUtils.h
index 7358e3f3504a..30cd419e3ebe 100644
--- a/layout/svg/SVGUtils.h
+++ b/layout/svg/SVGUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGViewFrame.cpp b/layout/svg/SVGViewFrame.cpp
index fe304a74c4c3..7b47980ebc17 100644
--- a/layout/svg/SVGViewFrame.cpp
+++ b/layout/svg/SVGViewFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGViewportFrame.cpp b/layout/svg/SVGViewportFrame.cpp
index fb9ab02c5705..b373b5907229 100644
--- a/layout/svg/SVGViewportFrame.cpp
+++ b/layout/svg/SVGViewportFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/SVGViewportFrame.h b/layout/svg/SVGViewportFrame.h
index 4e1c359fe417..73b837e753d0 100644
--- a/layout/svg/SVGViewportFrame.h
+++ b/layout/svg/SVGViewportFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/svg/moz.build b/layout/svg/moz.build
index b27c9115dbbc..03dff14dd52a 100644
--- a/layout/svg/moz.build
+++ b/layout/svg/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/svg/svg.css b/layout/svg/svg.css
index eff2de40878f..658c2f607329 100644
--- a/layout/svg/svg.css
+++ b/layout/svg/svg.css
@@ -1,5 +1,4 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
+/*
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/BasicTableLayoutStrategy.cpp b/layout/tables/BasicTableLayoutStrategy.cpp
index 2ee55f73695e..17aa8ab1b367 100644
--- a/layout/tables/BasicTableLayoutStrategy.cpp
+++ b/layout/tables/BasicTableLayoutStrategy.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=2:et:sw=2:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/BasicTableLayoutStrategy.h b/layout/tables/BasicTableLayoutStrategy.h
index a2a657728f5c..b60ddb0570be 100644
--- a/layout/tables/BasicTableLayoutStrategy.h
+++ b/layout/tables/BasicTableLayoutStrategy.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=4:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/FixedTableLayoutStrategy.cpp b/layout/tables/FixedTableLayoutStrategy.cpp
index 48396b00e60b..12755536b994 100644
--- a/layout/tables/FixedTableLayoutStrategy.cpp
+++ b/layout/tables/FixedTableLayoutStrategy.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=2:et:sw=2:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/FixedTableLayoutStrategy.h b/layout/tables/FixedTableLayoutStrategy.h
index 6e55ac696fe1..03423424762c 100644
--- a/layout/tables/FixedTableLayoutStrategy.h
+++ b/layout/tables/FixedTableLayoutStrategy.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=2:et:sw=2:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/SpanningCellSorter.cpp b/layout/tables/SpanningCellSorter.cpp
index 300dac45e1ad..f0a12acd3fc6 100644
--- a/layout/tables/SpanningCellSorter.cpp
+++ b/layout/tables/SpanningCellSorter.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=4:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/SpanningCellSorter.h b/layout/tables/SpanningCellSorter.h
index 3ce4a76a9c56..de2a2e319258 100644
--- a/layout/tables/SpanningCellSorter.h
+++ b/layout/tables/SpanningCellSorter.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=4:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/TableArea.h b/layout/tables/TableArea.h
index 56d7af3c0f58..36f2a5f9194f 100644
--- a/layout/tables/TableArea.h
+++ b/layout/tables/TableArea.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/celldata.h b/layout/tables/celldata.h
index 43947def5780..7a9ea2aef798 100644
--- a/layout/tables/celldata.h
+++ b/layout/tables/celldata.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/moz.build b/layout/tables/moz.build
index f6a1a1f344b6..28c10601c0a0 100644
--- a/layout/tables/moz.build
+++ b/layout/tables/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/tables/nsCellMap.cpp b/layout/tables/nsCellMap.cpp
index 15693973c5c8..4f607d29d78b 100644
--- a/layout/tables/nsCellMap.cpp
+++ b/layout/tables/nsCellMap.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsCellMap.h b/layout/tables/nsCellMap.h
index 82e23d5b74a7..fec9f4ddd797 100644
--- a/layout/tables/nsCellMap.h
+++ b/layout/tables/nsCellMap.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsITableCellLayout.h b/layout/tables/nsITableCellLayout.h
index dbeb330beb36..cc072dca0448 100644
--- a/layout/tables/nsITableCellLayout.h
+++ b/layout/tables/nsITableCellLayout.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsITableLayoutStrategy.h b/layout/tables/nsITableLayoutStrategy.h
index 593ffd544e8f..fc265784be6e 100644
--- a/layout/tables/nsITableLayoutStrategy.h
+++ b/layout/tables/nsITableLayoutStrategy.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:ts=4:et:sw=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableCellFrame.cpp b/layout/tables/nsTableCellFrame.cpp
index 8b574c17f963..892bd3b3dcd3 100644
--- a/layout/tables/nsTableCellFrame.cpp
+++ b/layout/tables/nsTableCellFrame.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableCellFrame.h b/layout/tables/nsTableCellFrame.h
index 858f0cb64523..a4941c0e7ecb 100644
--- a/layout/tables/nsTableCellFrame.h
+++ b/layout/tables/nsTableCellFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableColFrame.cpp b/layout/tables/nsTableColFrame.cpp
index 7036513067f7..66ec0dd5a6dc 100644
--- a/layout/tables/nsTableColFrame.cpp
+++ b/layout/tables/nsTableColFrame.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableColFrame.h b/layout/tables/nsTableColFrame.h
index e1895bcb51fc..f7041c583018 100644
--- a/layout/tables/nsTableColFrame.h
+++ b/layout/tables/nsTableColFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableColGroupFrame.cpp b/layout/tables/nsTableColGroupFrame.cpp
index 79203d7976df..a2a282d2c5d4 100644
--- a/layout/tables/nsTableColGroupFrame.cpp
+++ b/layout/tables/nsTableColGroupFrame.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableColGroupFrame.h b/layout/tables/nsTableColGroupFrame.h
index c00877caa95c..9e38ccf7baea 100644
--- a/layout/tables/nsTableColGroupFrame.h
+++ b/layout/tables/nsTableColGroupFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableFrame.cpp b/layout/tables/nsTableFrame.cpp
index ea52114b8d88..c6bf859b7ddb 100644
--- a/layout/tables/nsTableFrame.cpp
+++ b/layout/tables/nsTableFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 sw=2 et tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableFrame.h b/layout/tables/nsTableFrame.h
index b23f472ead51..4441642e0f29 100644
--- a/layout/tables/nsTableFrame.h
+++ b/layout/tables/nsTableFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableRowFrame.cpp b/layout/tables/nsTableRowFrame.cpp
index c7fc861b5752..15d3544af1f4 100644
--- a/layout/tables/nsTableRowFrame.cpp
+++ b/layout/tables/nsTableRowFrame.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableRowFrame.h b/layout/tables/nsTableRowFrame.h
index 98ebb2ed1636..ec842cdfb279 100644
--- a/layout/tables/nsTableRowFrame.h
+++ b/layout/tables/nsTableRowFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableRowGroupFrame.cpp b/layout/tables/nsTableRowGroupFrame.cpp
index 44559b64b36a..054c56272eee 100644
--- a/layout/tables/nsTableRowGroupFrame.cpp
+++ b/layout/tables/nsTableRowGroupFrame.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableRowGroupFrame.h b/layout/tables/nsTableRowGroupFrame.h
index 23d4f5129eaa..39cbe216bc8b 100644
--- a/layout/tables/nsTableRowGroupFrame.h
+++ b/layout/tables/nsTableRowGroupFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableWrapperFrame.cpp b/layout/tables/nsTableWrapperFrame.cpp
index 15c32d1c7bd7..0f3a3eef8b74 100644
--- a/layout/tables/nsTableWrapperFrame.cpp
+++ b/layout/tables/nsTableWrapperFrame.cpp
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tables/nsTableWrapperFrame.h b/layout/tables/nsTableWrapperFrame.h
index 6aa438260fd4..3667454f4833 100644
--- a/layout/tables/nsTableWrapperFrame.h
+++ b/layout/tables/nsTableWrapperFrame.h
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/LayoutDebugChild.sys.mjs b/layout/tools/layout-debug/LayoutDebugChild.sys.mjs
index 801480052152..751829399d67 100644
--- a/layout/tools/layout-debug/LayoutDebugChild.sys.mjs
+++ b/layout/tools/layout-debug/LayoutDebugChild.sys.mjs
@@ -1,4 +1,3 @@
-/* vim: set ts=2 sw=2 sts=2 et tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/moz.build b/layout/tools/layout-debug/moz.build
index cc7cf90dd290..a2b80313eeb5 100644
--- a/layout/tools/layout-debug/moz.build
+++ b/layout/tools/layout-debug/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/tools/layout-debug/src/components.conf b/layout/tools/layout-debug/src/components.conf
index 07ad3d155d07..e9c14002ea77 100644
--- a/layout/tools/layout-debug/src/components.conf
+++ b/layout/tools/layout-debug/src/components.conf
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/tools/layout-debug/src/moz.build b/layout/tools/layout-debug/src/moz.build
index 37f9389fa36e..56fd2efca1e2 100644
--- a/layout/tools/layout-debug/src/moz.build
+++ b/layout/tools/layout-debug/src/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/tools/layout-debug/src/nsILayoutDebuggingTools.idl b/layout/tools/layout-debug/src/nsILayoutDebuggingTools.idl
index a9bdfd2a431f..5055f238fd95 100644
--- a/layout/tools/layout-debug/src/nsILayoutDebuggingTools.idl
+++ b/layout/tools/layout-debug/src/nsILayoutDebuggingTools.idl
@@ -1,5 +1,3 @@
-/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-// vim:cindent:tabstop=4:expandtab:shiftwidth=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/src/nsLayoutDebugCLH.cpp b/layout/tools/layout-debug/src/nsLayoutDebugCLH.cpp
index ffc638d2a180..08fabc980015 100644
--- a/layout/tools/layout-debug/src/nsLayoutDebugCLH.cpp
+++ b/layout/tools/layout-debug/src/nsLayoutDebugCLH.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:tabstop=4:expandtab:shiftwidth=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/src/nsLayoutDebugCLH.h b/layout/tools/layout-debug/src/nsLayoutDebugCLH.h
index aa99bf9eff45..a0ca2f13e5eb 100644
--- a/layout/tools/layout-debug/src/nsLayoutDebugCLH.h
+++ b/layout/tools/layout-debug/src/nsLayoutDebugCLH.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:tabstop=4:expandtab:shiftwidth=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/src/nsLayoutDebuggingTools.cpp b/layout/tools/layout-debug/src/nsLayoutDebuggingTools.cpp
index 50020732751a..7c12843a954b 100644
--- a/layout/tools/layout-debug/src/nsLayoutDebuggingTools.cpp
+++ b/layout/tools/layout-debug/src/nsLayoutDebuggingTools.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/src/nsLayoutDebuggingTools.h b/layout/tools/layout-debug/src/nsLayoutDebuggingTools.h
index 3b2e298f66b9..88fd6fb124ce 100644
--- a/layout/tools/layout-debug/src/nsLayoutDebuggingTools.h
+++ b/layout/tools/layout-debug/src/nsLayoutDebuggingTools.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-// vim:cindent:tabstop=4:expandtab:shiftwidth=4:
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/tools/layout-debug/ui/content/layoutdebug.xhtml b/layout/tools/layout-debug/ui/content/layoutdebug.xhtml
index 71f4c586bb4f..877be1e4171e 100644
--- a/layout/tools/layout-debug/ui/content/layoutdebug.xhtml
+++ b/layout/tools/layout-debug/ui/content/layoutdebug.xhtml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<!-- vim: set shiftwidth=2 tabstop=8 expandtab :
+<!--
    -
    -
    - This Source Code Form is subject to the terms of the Mozilla Public
diff --git a/layout/tools/layout-debug/ui/moz.build b/layout/tools/layout-debug/ui/moz.build
index d988c0ff9b16..527b359d11f2 100644
--- a/layout/tools/layout-debug/ui/moz.build
+++ b/layout/tools/layout-debug/ui/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/tools/reftest/clean-reftest-output.pl b/layout/tools/reftest/clean-reftest-output.pl
index b1959281d538..0daef31edf3a 100755
--- a/layout/tools/reftest/clean-reftest-output.pl
+++ b/layout/tools/reftest/clean-reftest-output.pl
@@ -1,5 +1,4 @@
 #!/usr/bin/perl
-# vim: set shiftwidth=4 tabstop=8 autoindent expandtab:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/tools/reftest/moz.build b/layout/tools/reftest/moz.build
index 41d0f888f757..87efba71432b 100644
--- a/layout/tools/reftest/moz.build
+++ b/layout/tools/reftest/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/xul/MiddleCroppingLabelFrame.cpp b/layout/xul/MiddleCroppingLabelFrame.cpp
index 553896171872..7a2ef0ebf9ce 100644
--- a/layout/xul/MiddleCroppingLabelFrame.cpp
+++ b/layout/xul/MiddleCroppingLabelFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/MiddleCroppingLabelFrame.h b/layout/xul/MiddleCroppingLabelFrame.h
index 8f2fba89d948..6bebc8869989 100644
--- a/layout/xul/MiddleCroppingLabelFrame.h
+++ b/layout/xul/MiddleCroppingLabelFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/PopupQueue.cpp b/layout/xul/PopupQueue.cpp
index 9a8b7014a08a..60b3333ebfd4 100644
--- a/layout/xul/PopupQueue.cpp
+++ b/layout/xul/PopupQueue.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 2; -*- */
-/* vim: set sw=2 ts=8 et tw=80 : */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/PopupQueue.h b/layout/xul/PopupQueue.h
index 54abeed37948..7f457e5286b0 100644
--- a/layout/xul/PopupQueue.h
+++ b/layout/xul/PopupQueue.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/SimpleXULLeafFrame.cpp b/layout/xul/SimpleXULLeafFrame.cpp
index c2e2504051ce..bc81aafbb041 100644
--- a/layout/xul/SimpleXULLeafFrame.cpp
+++ b/layout/xul/SimpleXULLeafFrame.cpp
@@ -1,6 +1,3 @@
-
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/SimpleXULLeafFrame.h b/layout/xul/SimpleXULLeafFrame.h
index 7a01181b19f1..8fa1f21b6507 100644
--- a/layout/xul/SimpleXULLeafFrame.h
+++ b/layout/xul/SimpleXULLeafFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/moz.build b/layout/xul/moz.build
index d0059fe0e987..7d81c18d2a0e 100644
--- a/layout/xul/moz.build
+++ b/layout/xul/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/xul/nsIPopupContainer.h b/layout/xul/nsIPopupContainer.h
index 8885fc559ced..654bfe7f7f7e 100644
--- a/layout/xul/nsIPopupContainer.h
+++ b/layout/xul/nsIPopupContainer.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsIScrollbarMediator.h b/layout/xul/nsIScrollbarMediator.h
index fb418ba8a61b..366374af93b8 100644
--- a/layout/xul/nsIScrollbarMediator.h
+++ b/layout/xul/nsIScrollbarMediator.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsMenuPopupFrame.cpp b/layout/xul/nsMenuPopupFrame.cpp
index 6853d512d037..0ecc45eba451 100644
--- a/layout/xul/nsMenuPopupFrame.cpp
+++ b/layout/xul/nsMenuPopupFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsMenuPopupFrame.h b/layout/xul/nsMenuPopupFrame.h
index e72762121f2d..f78011b204c8 100644
--- a/layout/xul/nsMenuPopupFrame.h
+++ b/layout/xul/nsMenuPopupFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsRepeatService.cpp b/layout/xul/nsRepeatService.cpp
index 761a5440413f..b6854c1f5671 100644
--- a/layout/xul/nsRepeatService.cpp
+++ b/layout/xul/nsRepeatService.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsRepeatService.h b/layout/xul/nsRepeatService.h
index db1518b0e961..aa1a5bcfa025 100644
--- a/layout/xul/nsRepeatService.h
+++ b/layout/xul/nsRepeatService.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsScrollbarButtonFrame.cpp b/layout/xul/nsScrollbarButtonFrame.cpp
index df57ba9397d1..7fd1ed5966db 100644
--- a/layout/xul/nsScrollbarButtonFrame.cpp
+++ b/layout/xul/nsScrollbarButtonFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsScrollbarButtonFrame.h b/layout/xul/nsScrollbarButtonFrame.h
index fb536a2ccf7b..f2e030a4ea04 100644
--- a/layout/xul/nsScrollbarButtonFrame.h
+++ b/layout/xul/nsScrollbarButtonFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsScrollbarFrame.cpp b/layout/xul/nsScrollbarFrame.cpp
index b80c54d340cf..85c5050a0549 100644
--- a/layout/xul/nsScrollbarFrame.cpp
+++ b/layout/xul/nsScrollbarFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsScrollbarFrame.h b/layout/xul/nsScrollbarFrame.h
index 92524e57b1e9..08257783ab89 100644
--- a/layout/xul/nsScrollbarFrame.h
+++ b/layout/xul/nsScrollbarFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsSliderFrame.cpp b/layout/xul/nsSliderFrame.cpp
index 5cc68c4b6a7b..761be1333009 100644
--- a/layout/xul/nsSliderFrame.cpp
+++ b/layout/xul/nsSliderFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsSliderFrame.h b/layout/xul/nsSliderFrame.h
index 95e27c03d53a..e9f5c8932901 100644
--- a/layout/xul/nsSliderFrame.h
+++ b/layout/xul/nsSliderFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsSplitterFrame.cpp b/layout/xul/nsSplitterFrame.cpp
index 857ec5f18397..d86b71f08617 100644
--- a/layout/xul/nsSplitterFrame.cpp
+++ b/layout/xul/nsSplitterFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsSplitterFrame.h b/layout/xul/nsSplitterFrame.h
index 9748a6d707ba..966fb0c70307 100644
--- a/layout/xul/nsSplitterFrame.h
+++ b/layout/xul/nsSplitterFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsXULPopupManager.cpp b/layout/xul/nsXULPopupManager.cpp
index 5d8fc3b66062..c04f11205be1 100644
--- a/layout/xul/nsXULPopupManager.cpp
+++ b/layout/xul/nsXULPopupManager.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsXULPopupManager.h b/layout/xul/nsXULPopupManager.h
index 62c17b2c25a2..9e618216c9f1 100644
--- a/layout/xul/nsXULPopupManager.h
+++ b/layout/xul/nsXULPopupManager.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsXULTooltipListener.cpp b/layout/xul/nsXULTooltipListener.cpp
index f3bfb15668a9..512a5748d519 100644
--- a/layout/xul/nsXULTooltipListener.cpp
+++ b/layout/xul/nsXULTooltipListener.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/nsXULTooltipListener.h b/layout/xul/nsXULTooltipListener.h
index 2ff6f93e5f45..1fae4d5f313c 100644
--- a/layout/xul/nsXULTooltipListener.h
+++ b/layout/xul/nsXULTooltipListener.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/moz.build b/layout/xul/tree/moz.build
index f99b7bd41ce3..f8fdf5dc2064 100644
--- a/layout/xul/tree/moz.build
+++ b/layout/xul/tree/moz.build
@@ -1,5 +1,3 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
diff --git a/layout/xul/tree/nsITreeSelection.idl b/layout/xul/tree/nsITreeSelection.idl
index d265b639ee96..dc9f55e57424 100644
--- a/layout/xul/tree/nsITreeSelection.idl
+++ b/layout/xul/tree/nsITreeSelection.idl
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsITreeView.idl b/layout/xul/tree/nsITreeView.idl
index 7f2480ceafbf..60ece811afd5 100644
--- a/layout/xul/tree/nsITreeView.idl
+++ b/layout/xul/tree/nsITreeView.idl
@@ -1,4 +1,3 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeBodyFrame.cpp b/layout/xul/tree/nsTreeBodyFrame.cpp
index 955b2c82a7ab..b6aa10336e79 100644
--- a/layout/xul/tree/nsTreeBodyFrame.cpp
+++ b/layout/xul/tree/nsTreeBodyFrame.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeBodyFrame.h b/layout/xul/tree/nsTreeBodyFrame.h
index 9fd300e5b8a6..66cb2ef46b3a 100644
--- a/layout/xul/tree/nsTreeBodyFrame.h
+++ b/layout/xul/tree/nsTreeBodyFrame.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeColumns.cpp b/layout/xul/tree/nsTreeColumns.cpp
index af0d25caa47c..abb0cf398d0f 100644
--- a/layout/xul/tree/nsTreeColumns.cpp
+++ b/layout/xul/tree/nsTreeColumns.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeColumns.h b/layout/xul/tree/nsTreeColumns.h
index da8e4374e95a..8dd3df7b07d4 100644
--- a/layout/xul/tree/nsTreeColumns.h
+++ b/layout/xul/tree/nsTreeColumns.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeContentView.cpp b/layout/xul/tree/nsTreeContentView.cpp
index b50d5143612f..0ddadcdaa07b 100644
--- a/layout/xul/tree/nsTreeContentView.cpp
+++ b/layout/xul/tree/nsTreeContentView.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeContentView.h b/layout/xul/tree/nsTreeContentView.h
index a754a6ada661..561500b2eed2 100644
--- a/layout/xul/tree/nsTreeContentView.h
+++ b/layout/xul/tree/nsTreeContentView.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeImageListener.cpp b/layout/xul/tree/nsTreeImageListener.cpp
index 066845e8c09f..df432ecca26d 100644
--- a/layout/xul/tree/nsTreeImageListener.cpp
+++ b/layout/xul/tree/nsTreeImageListener.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeImageListener.h b/layout/xul/tree/nsTreeImageListener.h
index f4ae7c569cb5..b768486c1960 100644
--- a/layout/xul/tree/nsTreeImageListener.h
+++ b/layout/xul/tree/nsTreeImageListener.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeSelection.cpp b/layout/xul/tree/nsTreeSelection.cpp
index e3aa7ad3ccca..d137a501c5d1 100644
--- a/layout/xul/tree/nsTreeSelection.cpp
+++ b/layout/xul/tree/nsTreeSelection.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeSelection.h b/layout/xul/tree/nsTreeSelection.h
index e438e30eb98d..bb8de9e43f65 100644
--- a/layout/xul/tree/nsTreeSelection.h
+++ b/layout/xul/tree/nsTreeSelection.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeStyleCache.cpp b/layout/xul/tree/nsTreeStyleCache.cpp
index 1a1f48d5bb43..a95310767673 100644
--- a/layout/xul/tree/nsTreeStyleCache.cpp
+++ b/layout/xul/tree/nsTreeStyleCache.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeStyleCache.h b/layout/xul/tree/nsTreeStyleCache.h
index a449c2322f68..e3520322474d 100644
--- a/layout/xul/tree/nsTreeStyleCache.h
+++ b/layout/xul/tree/nsTreeStyleCache.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeUtils.cpp b/layout/xul/tree/nsTreeUtils.cpp
index 54a5ea80cea8..bcb580c39efc 100644
--- a/layout/xul/tree/nsTreeUtils.cpp
+++ b/layout/xul/tree/nsTreeUtils.cpp
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
diff --git a/layout/xul/tree/nsTreeUtils.h b/layout/xul/tree/nsTreeUtils.h
index cfe8c0cff42b..614006824209 100644
--- a/layout/xul/tree/nsTreeUtils.h
+++ b/layout/xul/tree/nsTreeUtils.h
@@ -1,5 +1,3 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */