[Webkit-unassigned] [Bug 83960] New: [CSS Filters] Do not use clipping rect when calculating the bounds of a layer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=83960

           Summary: [CSS Filters] Do not use clipping rect when
                    calculating the bounds of a layer
           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: achicu at adobe.com


WebKit should not clip the bounding box of a layer when it draws it into a memory buffer in order to compute the CSS Filter for it. That's because the drop-shadow or blur effects might reference pixels outside the initial clipping box.

This should fix the results for two tests that are already checked in:
LayoutTests/css3/filters/filter-repaint-shadow-clipped.html
LayoutTests/css3/filters/filter-repaint-shadow-rotated.html

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