Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 20ba7372309cd112039c97c47a566e80de1aefe8
https://github.com/WebKit/WebKit/commit/20ba7372309cd112039c97c47a566e80de1aefe8
Author: Matt Woodrow <[email protected]>
Date: 2024-07-18 (Thu, 18 Jul 2024)
Changed paths:
M Source/WebCore/rendering/RenderLayerCompositor.cpp
Log Message:
-----------
Avoid crashing if traverseUnchangedSubtree can't find the same
backingSharingProvider.
https://bugs.webkit.org/show_bug.cgi?id=276754
<rdar://131972979>
Reviewed by Simon Fraser.
This currently is a nullptr crash if backingProviderCandidateForLayer returns
nullptr.
We should be able to see if the candidate used from the last update is still
available, and use that to avoid the crash (but still render incorrectly).
* Source/WebCore/rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::BackingSharingState::previousBackingProviderCandidateForLayer):
(WebCore::RenderLayerCompositor::traverseUnchangedSubtree):
Canonical link: https://commits.webkit.org/281112@main
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