Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 47fe298829ac629f561518641b7e6bc4069cb09b
      
https://github.com/WebKit/WebKit/commit/47fe298829ac629f561518641b7e6bc4069cb09b
  Author: Alan Baradlay <[email protected]>
  Date:   2024-06-26 (Wed, 26 Jun 2024)

  Changed paths:
    A 
LayoutTests/fast/repaint/simplified-layout-with-descendant-overflow-fails-expected.txt
    A 
LayoutTests/fast/repaint/simplified-layout-with-descendant-overflow-fails.html
    M Source/WebCore/rendering/RenderLayer.cpp

  Log Message:
  -----------
  REGRESSION (279847@main): Rendering is broken after scrolling on build result 
page
https://bugs.webkit.org/show_bug.cgi?id=275866
<rdar://130055235>

Reviewed by Simon Fraser.

In 279847@main we made an incorrect assumption that ancestor layers would take 
care of repainting their overflowing descendants.
This patch disables canUseSimplifiedRepaintPass for such subtrees with 
transform.

* 
LayoutTests/fast/repaint/simplified-layout-with-descendant-overflow-fails-expected.txt:
 Added.
* 
LayoutTests/fast/repaint/simplified-layout-with-descendant-overflow-fails.html: 
Added.
* Source/WebCore/rendering/RenderLayer.cpp:
(WebCore::RenderLayer::recursiveUpdateLayerPositions):

Canonical link: https://commits.webkit.org/280406@main



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