[Webkit-unassigned] [Bug 72294] New: Add occludes() test to Region

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72294

           Summary: Add occludes() test to Region
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: danakj at chromium.org


This adds an occludes(const IntRect&) method to the Region class which tests if the Region fully occludes a given query rectangle.

This code will be used by methods to determine opaque GraphicsLayers from the sum of their RenderObjects.

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