Revert 253439 "Make it possible to cancel commits following an a..."

> Make it possible to cancel commits following an animation
> 
> If we didn't invalidate anything when running main thread animations, there is
> no need to continue with the commit.
> 
> BUG=345584
> 
> Review URL: https://codereview.chromium.org/178123003

TBR=skyostil@chromium.org

Review URL: https://codereview.chromium.org/181383005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@253507 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 253507