[Webkit-unassigned] [Bug 20243] New: Potential crash with RenderLayer clipRects

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20243

           Summary: Potential crash with RenderLayer clipRects
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: simon.fraser at apple.com


Bug 20066 changed RenderLayer::calculateClipRects() to not call
parent()->calculateClipRects() in some situations. That means that the parent's
clipRects are no longer guaranteed to be set up, so the code lower in the
method needs to protect against this.


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