Restore r25049 (back out r25295) to isolate it as the cause of bug 20872.
Restore r25049 (back out r25295) to isolate it as the cause of bug 20872.

TBR=pinkerton
BUG=20872
TEST=watch perf
Review URL: http://codereview.chromium.org/194008

git-svn-id: http://src.chromium.org/svn/trunk/src@25296 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: f1a32f4625d3f06137d47fef9980535763ebdab6
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser