[Webkit-unassigned] [Bug 170851] New: GraphicsLayerCA::recursiveCommitChanges should not descend to subtrees without changes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=170851

            Bug ID: 170851
           Summary: GraphicsLayerCA::recursiveCommitChanges should not
                    descend to subtrees without changes
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: koivisto at iki.fi
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

With lots of layers this can be very slow as it always traverses the entire layer tree. We should track which branches actually have changes.

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