Chromium support for window.webkitRequestAnimationFrame()

This is a very simple scheduler that targets 100fps.

BUG=64848
TEST=layout tests

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=71909

Review URL: http://codereview.chromium.org/6136005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72230 0039d316-1c4b-4281-b951-d872f2087c98
11 files changed