Philip Rogers
c6e0034548
Automatic update from web-platform-tests [html-in-canvas] Support nested html-in-canvas Allow <canvas layoutsubtree> elements to contain other nested <canvas layoutsubtree> elements, with proper `paint` event ordering, placeholder recording, snapshot replacement, and origin-clean checks. Key changes: 1. Compositing decisions: Assign CompositingReason::kCanvasChild to direct children of nested layoutsubtree canvases. 2. Paint event ordering: Remove the IsInCanvasSubtree restriction in LocalFrameView::DidPaintCanvasChild and RequestCanvasOnpaint. Sort canvas_elements_needing_onpaint by DOM tree depth in descending order so deeper canvases fire onpaint events first. 3. Placeholder recording: Record a CustomDataOp containing the nested canvas's DOMNodeId as a placeholder in HTMLCanvasPainter. 4. cc::PaintRecord placeholder replacement: Add ReplaceCustomData to PaintOpBuffer and PaintRecord to swap CustomDataOp placeholders with replacement PaintRecords. 5. Snapshot resolution: Add GetCanvasSnapshotCallback to PaintArtifactCompositor to retrieve unaccelerated snapshots for nested canvases, and update GetCanvasChildPaintRecord to swap placeholders with full snapshots. Bug: 527969910 Change-Id: I65c56531a5e530bd31abbdc2db30fd3b46e6dead Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7964051 Reviewed-by: Stefan Zager <szager@chromium.org> Commit-Queue: Philip Rogers <pdr@chromium.org> Cr-Commit-Position: refs/heads/main@{#1660605} -- wpt-commits: 30e31f4c0f83f093c8d4ad878605a95942633632 wpt-pr: 61224
To update the generated tests, run wpt update-built --include canvas.