[Webkit-unassigned] [Bug 109560] Implement coordinated scrollbar for subframes and sublayers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=109560





--- Comment #29 from Tien-Ren Chen <trchen at chromium.org>  2013-02-21 00:10:31 PST ---
Change from last patch:
* Fixed the nits jamesr@ mentioned.
* Only enable coordinated scrollbars for Android.
* Unwrapped ScrollbarLayerManager.
* Fixed crash bug due to Frame/FrameView lifetime. Now we notify ScrollingCoordinator when either Frame/FrameView is going to be detached from Page/Frame.
* CachedFrame should notify Frame and FrameView before detaching them

I'm not able to reproduce compositing/iframes/iframe-composited-scrolling.html
crash anymore. Started a stress test to run all layout tests 20 times before going home.

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