[Webkit-unassigned] [Bug 66566] New: [CSSRegions]Speed up RenderFlowThread repaint of regions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=66566

           Summary: [CSSRegions]Speed up RenderFlowThread repaint of
                    regions
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mihnea at adobe.com


Improve RenderFlowThread::repaintRectangleInRegions by bailing out earlier if in printing or the repaint rectangle is empty. In this case, there is no need to iterate all the regions.

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