Morten Stenshorne b23e39b4da Bug 2050552 [wpt PR 60898] - Avoid nullptr LayoutInputNode child caused by display-locking., a=testonly ...

Automatic update from web-platform-tests
Avoid nullptr LayoutInputNode child caused by display-locking.

An element may become display-locked while laying out its children. This
is bad, but that's an underlying display-locking issue.

The recent change crrev.com/c/7957397 added code that assumed that if a
BlockNode has children, FirstChild() doesn't return nullptr. But if the
node gets display-locked while laying out its own children, FirstChild()
will suddenly return nullptr, even if it didn't do so initially.

See crbug.com/527144302 for details.

Bug: 526163437
Change-Id: Ibb95bb332fa9bd4f424d1b3b1fd226c47dbdc7b3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7978977
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1652444}

--

wpt-commits: e459ca8f5c8804e243f540c817ed279e8a72c757
wpt-pr: 60898

2026-07-06 08:45:43 +00:00

..

crashtests

…

parsing

…

resources

…

animation-display-lock.html

…

container-focus-ref.html

…

container-ref.html

…

container-with-child-ref.html

…

container-with-pos-children-ref.html

…

content-visibility-001.html

…

content-visibility-002.html

…

content-visibility-003-ref.html

…

content-visibility-003.html

…

content-visibility-004-ref.html

…

content-visibility-004.html

…

content-visibility-005.html

…

content-visibility-006.html

…

content-visibility-007.html

…

content-visibility-008.html

…

content-visibility-009.html

…

content-visibility-010.html

…

content-visibility-011.html

…

content-visibility-012.html

…

content-visibility-013.html

…

content-visibility-014.html

…

content-visibility-015.html

…

content-visibility-016.html

…

content-visibility-017.html

…

content-visibility-018.html

…

content-visibility-019-ref.html

…

content-visibility-019.sub.https.html

…

content-visibility-020-ref.html

…

content-visibility-020.html

…

content-visibility-021-ref.html

…

content-visibility-021.html

…

content-visibility-022-ref.html

…

content-visibility-022.html

…

content-visibility-023-ref.html

…

content-visibility-023.html

…

content-visibility-024-ref.html

…

content-visibility-024.html

…

content-visibility-025-ref.html

…

content-visibility-025.html

…

content-visibility-026.html

…

content-visibility-027-ref.html

…

content-visibility-027.html

…

content-visibility-028.html

…

content-visibility-029.html

…

content-visibility-030.html

…

content-visibility-031.html

…

content-visibility-032-ref.html

…

content-visibility-032.html

…

content-visibility-033-ref.html

…

content-visibility-033.sub.https.html

…

content-visibility-034-ref.html

…

content-visibility-034.html

…

content-visibility-035.html

…

content-visibility-036.html

…

content-visibility-037.html

…

content-visibility-038.html

…

content-visibility-039.html

…

content-visibility-040.html

…

content-visibility-041.html

…

content-visibility-042-ref.html

…

content-visibility-042.html

…

content-visibility-043.html

…

content-visibility-044.html

…

content-visibility-045.html

…

content-visibility-046.html

…

content-visibility-047.html

…

content-visibility-048.html

…

content-visibility-049-ref.html

…

content-visibility-049.html

…

content-visibility-050.html

…

content-visibility-051.html

…

content-visibility-052.html

…

content-visibility-053.html

…

content-visibility-054.html

…

content-visibility-055.html

…

content-visibility-056.html

…

content-visibility-057.html

…

content-visibility-058-ref.html

…

content-visibility-058.html

…

content-visibility-060.html

…

content-visibility-061.html

…

content-visibility-062.html

…

content-visibility-063.html

…

content-visibility-064-ref.html

…

content-visibility-064.html

…

content-visibility-065.html

…

content-visibility-066.html

…

content-visibility-067.html

…

content-visibility-068.html

…

content-visibility-069.html

…

content-visibility-070.html

…

content-visibility-071.html

…

content-visibility-072.html

…

content-visibility-073.html

…

content-visibility-074-ref.html

…

content-visibility-074.html

…

content-visibility-075-ref.html

…

content-visibility-075.html

…

content-visibility-076.html

…

content-visibility-077.html

…

content-visibility-078-ref.html

…

content-visibility-078.html

…

content-visibility-079-ref.html

…

content-visibility-079.html

…

content-visibility-080.html

…

content-visibility-081.html

…

content-visibility-082.html

…

content-visibility-083.html

…

content-visibility-084.html

…

content-visibility-085.html

…

content-visibility-086.html

…

content-visibility-087.html

…

content-visibility-088.html

…

content-visibility-089.html

…

content-visibility-090.html

…

content-visibility-091.html

…

content-visibility-092.html

…

content-visibility-093.html

…

content-visibility-094-ref.html

…

content-visibility-094.html

…

content-visibility-095-ref.html

…

content-visibility-095.html

…

content-visibility-096-ref.html

…

content-visibility-096.html

…

content-visibility-097-ref.html

…

content-visibility-097.html

…

content-visibility-098.html

…

content-visibility-099-ref.html

…

content-visibility-099.html

…

content-visibility-anchor-positioning-001.html

…

content-visibility-anchor-positioning-002.html

…

content-visibility-anchor-positioning-003.html

…

content-visibility-anchor-positioning-004.html

…

content-visibility-anchor-positioning-005.html

…

content-visibility-anchor-positioning-006.html

…

content-visibility-anchor-positioning-007.html

…

content-visibility-animation-and-scroll-ref.html

…

content-visibility-animation-and-scroll.html

…

content-visibility-animation-becomes-visible-ref.html

…

content-visibility-animation-becomes-visible.html

…

content-visibility-animation-in-auto-subtree.html

…

content-visibility-animation-with-scroll-timeline-in-auto-subtree.html

…

content-visibility-animation-with-scroll-timeline-in-hidden-subtree.html

…

content-visibility-auto-applied-to-th-crash.html

…

content-visibility-auto-first-observation-immediate.html

…

content-visibility-auto-img-001-ref.html

…

content-visibility-auto-img-001.html

…

content-visibility-auto-in-iframe-ref.html

…

content-visibility-auto-in-iframe.html

…

content-visibility-auto-intrinsic-width.html

…

content-visibility-auto-nested-ref.html

…

content-visibility-auto-nested-scroll-ref.html

…

content-visibility-auto-nested-scroll.html

…

content-visibility-auto-nested.html

…

content-visibility-auto-print-ref.html

…

content-visibility-auto-print.html

…

content-visibility-auto-relevancy-updates.html

…

content-visibility-auto-selection-crash.html

…

content-visibility-auto-state-changed-first-observation.html

…

content-visibility-auto-state-changed-removed.html

…

content-visibility-auto-state-changed.html

…

content-visibility-auto-svg-image-ref.html

…

content-visibility-auto-svg-image.html

…

content-visibility-auto-svg-text.html

…

content-visibility-auto-text-fragment.html

…

content-visibility-background-clip-crash.html

…

content-visibility-canvas-ref.html

…

content-visibility-canvas.html

…

content-visibility-continuations-crash.html

…

content-visibility-fieldset-size-ref.html

…

content-visibility-fieldset-size.html

…

content-visibility-forced-layout-client-rects.html

…

content-visibility-form-controls-crash.html

…

content-visibility-hidden-and-innertext-ref.html

…

content-visibility-hidden-and-innertext.html

…

content-visibility-hidden-boundingbox-query.html

…

content-visibility-hidden-offsetTop-left-width-height.html

…

content-visibility-hidden-scrollTop-left-width-height.html

…

content-visibility-hidden-with-column-spanner-ref.html

…

content-visibility-hidden-with-column-spanner.html

…

content-visibility-hit-test-contents-crash.html

…

content-visibility-img.html

…

content-visibility-in-relpos-before-crash.html

…

content-visibility-in-svg-000-crash.html

…

content-visibility-input-image.html

…

content-visibility-interpolation.html

…

content-visibility-intrinsic-size-001-ref.html

…

content-visibility-intrinsic-size-001.html

…

content-visibility-layout-containment-001.html

…

content-visibility-layout-paint-containment-001.html

…

content-visibility-on-display-contents.html

…

content-visibility-on-g-ref.html

…

content-visibility-on-g.html

…

content-visibility-on-root-svg-ref.html

…

content-visibility-on-root-svg.html

…

content-visibility-on-ruby-ref.html

…

content-visibility-on-ruby.html

…

content-visibility-output-crash.html

…

content-visibility-paint-containment-001-ref.html

…

content-visibility-paint-containment-001.html

…

content-visibility-paint-containment-002-ref.html

…

content-visibility-paint-containment-002.html

…

content-visibility-paint-containment-003-ref.html

…

content-visibility-paint-containment-003.html

…

content-visibility-paint-containment-004-ref.html

…

content-visibility-paint-containment-004.html

…

content-visibility-resize-observer-no-error-ref.html

…

content-visibility-resize-observer-no-error.html

…

content-visibility-selection-crash.html

…

content-visibility-size-containment-001.html

…

content-visibility-style-containment-001.html

…

content-visibility-svg-path.html

…

content-visibility-svg-rect.html

…

content-visibility-svg-text.html

…

content-visibility-svg.html

…

content-visibility-video-ref.html

…

content-visibility-video.html

…

content-visibility-vs-scrollIntoView-001-ref.html

…

content-visibility-vs-scrollIntoView-001.html

…

content-visibility-vs-scrollIntoView-002-ref.html

…

content-visibility-vs-scrollIntoView-002.html

…

content-visibility-vs-scrollIntoView-003.html

…

content-visibility-web-animation-in-auto-subtree.html

…

content-visibility-with-float-crash.html

…

content-visibility-with-popover-top-layer-000.html

…

content-visibility-with-popover-top-layer-001.html

…

content-visibility-with-popover-top-layer-002.html

…

content-visibility-with-popover-top-layer-003.html

…

content-visibility-with-popover-top-layer-004.html

…

content-visibility-with-popover-top-layer-005.html

…

content-visibility-with-popover-top-layer-006.html

…

content-visibility-with-popover-top-layer-and-auto-descendant-ref.html

…

content-visibility-with-popover-top-layer-and-auto-descendant.html

…

content-visibility-with-popover-top-layer-hide-after-addition.html

…

content-visibility-with-top-layer-000.html

…

content-visibility-with-top-layer-001.html

…

content-visibility-with-top-layer-002.html

…

content-visibility-with-top-layer-003.html

…

content-visibility-with-top-layer-004.html

…

content-visibility-with-top-layer-005.html

…

content-visibility-with-top-layer-006.html

…

content-visibility-with-top-layer-007.html

…

content-visibility-with-top-layer-008.html

…

content-visibility-with-top-layer-and-auto-descendant-ref.html

…

content-visibility-with-top-layer-and-auto-descendant.html

…

content-visibility-with-top-layer-hide-after-addition.html

…

content-visibility-with-top-layer-in-auto-subtree-removal.html

…

content-with-popover-top-layer-ref.html

…

content-with-top-layer-ref.html

…

contentvisibility-nestedslot-crash.html

…

detach-locked-slot-children-crash.html

…

display-ruby-text-crash.html

…

document-element-computed-style.html

…

dynamic-change-paint-fully-obscuring-child-001.html

…

dynamic-change-with-slotted-text-ref.html

…

dynamic-change-with-slotted-text.html

…

element-reassigned-to-skipped-slot.html

…

element-reassigned-to-slot-in-skipped-subtree.html

…

hidden-execcommand-crash.html

…

hidden-pseudo-element-removed-crash.html

…

inheritance.html

…

inline-container-with-child-ref.html

…

locked-frame-crash.html

…

meter-selection-crash.html

…

positioned-container-ref.html

…

scrollIntoView-target-with-contents-hidden-ref.html

…

scrollIntoView-target-with-contents-hidden.html

…

scrollIntoView-with-focus-target-with-contents-hidden-ref.html

…

scrollIntoView-with-focus-target-with-contents-hidden.html

…

slot-content-visibility-1-crash.html

…

slot-content-visibility-2-crash.html

…

slot-content-visibility-3-crash.html

…

slot-content-visibility-4-crash.html

…

slot-content-visibility-5-crash.html

…

slot-content-visibility-6-crash.html

…

slot-content-visibility-7-crash.html

…

slot-content-visibility-8-crash.html

…

slot-content-visibility-9-crash.html

…

slot-content-visibility-10-crash.html

…

slot-content-visibility-11-crash.html

…

slot-content-visibility-12-crash.html

…

slot-content-visibility-13-crash.html

…

slot-content-visibility-14-crash.html

…

slot-content-visibility-15-crash.html

…

slot-content-visibility-16-crash.html

…

slot-content-visibility-17-crash.html

…

slot-content-visibility-18-crash.html

…

slot-content-visibility-19-crash.html

…

slot-content-visibility-20-crash.html

…

slot-content-visibility-21-crash.html

…

slot-content-visibility-22-crash.html

…

spacer-and-container-ref.html

…

spacer-and-container-scrolled-ref.html

…

spacer-with-popover-top-layer-ref.html

…

spacer-with-top-layer-ref.html

…

touch-action-beside-display-locked-fixedpos-iframe-crash.html

…

WEB_FEATURES.yml

…