[Webkit-unassigned] [Bug 89828] New: Optimize RenderGeometryMap

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=89828

           Summary: Optimize RenderGeometryMap
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: koivisto at iki.fi


RenderGeometryMap currently gathers mappings by climbing the rendering tree. This is slow and can produce large number of mapping steps. In the common case we already have the child layer coordinates available in the layer tree and we can just use that.

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