[Webkit-unassigned] [Bug 64591] New: Use requestAnimationFrame callbacks to pump CSS animations

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64591

           Summary: Use requestAnimationFrame callbacks to pump CSS
                    animations
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: alex at dojotoolkit.org
                CC: simon.fraser at apple.com, dglazkov at chromium.org,
                    jamesr at chromium.org, vangelis at chromium.org


Ports which currently use the default AnimationController have their CSS animations pumped by a timer that runs every 25ms, meaning they top out at ~40fps. Going faster is problematic as we recalc style on every frame (potentially). ENABLE(REQUEST_ANIMATION_FRAME) provides an out.

Initial patch forthcoming.

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