Fix bug with render targets not getting restored correctly.
Fix bug with render targets not getting restored correctly.

Review URL: http://codereview.chromium.org/155185

git-svn-id: http://src.chromium.org/svn/trunk/src@20117 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: a8c984205f4fd47159686e06a19a0174c2f472e2
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