Fix RAF-stall that occurs when switching between WebGL animation and another tab. For some reason the RAF engine will stall permanently when switching back to a WebGL animation when the early out code is there. This just allows a DoDeferredUpdate anyway, which should be harmless because the visible check is done later.
Fix RAF-stall that occurs when switching between WebGL animation and another tab. For some reason the RAF engine will stall permanently when switching back to a WebGL animation when the early out code is there. This just allows a DoDeferredUpdate anyway, which should be harmless because the visible check is done later.

BUG=85265
TEST=switch between WebGL particles demo and about:flags for a while, notice no stall.

Review URL: http://codereview.chromium.org/6995062

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@88474 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,ropik/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,ropik/chromium,adobe/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,ropik/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,ropik/chromium