[Webkit-unassigned] [Bug 100257] Don't fire requestAnimationFrame for scripts in frames that are out of view

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=100257





--- Comment #2 from Nick Johnson <nick at spider.io>  2012-10-24 09:02:50 PST ---
When a frame is out of view (such as an iframe that's scrolled offscreen), WebKit shouldn't fire requestAnimationFrame callbacks.

Avoiding these unnecessary callbacks reduces CPU consumption, and thus, battery consumption on mobile devices.

The attached patch implements that optimisation.

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