[Webkit-unassigned] [Bug 92791] New: Reduce the side-effects of animations turning off overlap testing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=92791

           Summary: Reduce the side-effects of animations turning off
                    overlap testing
           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: simon.fraser at apple.com
                CC: bdakin at apple.com


Some pages have elements that go into and out of compositing layers when animations/transitions on unrelated elements run, because we turn off overlap testing if we see an accelerated transform animation. This unwanted switching into/out of compositing layers can cause flashing in some cases. We should try to avoid it.

One site that shows this is http://t.aol.com with an iPad user agent.

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