[Webkit-unassigned] [Bug 55257] New: Support creating compositing layers for scrollable and overflowing objects

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=55257

           Summary: Support creating compositing layers for scrollable and
                    overflowing objects
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: sievers at google.com


The existing logic should be extended to allow creating hardware compositing layers for scrollable (I)Frames, DIVS, and others. A new compositing trigger should be added to turn on/off this feature, and layers should only be created if the object is both scrollable and has actual overflow.

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