[Webkit-unassigned] [Bug 57956] REGRESSION (WebKit2): CSS animations on pages that use accelerated compositing pause briefly when clicking on title bar

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=57956





--- Comment #2 from Adam Roben (:aroben) <aroben at apple.com>  2011-04-07 08:43:00 PST ---
It looks like the entire main thread pauses when clicking and holding on the title bar. For example, DHTML animations stop, Safari's tabs' spinning progress indicators stop, etc. The only reason CSS animations don't pause in WebKit1 is that the animations are proceeding off the main thread.

So really this bug boils down to "CSS animations happen on the main thread in WebKit2".

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