Disable RenderThread unittests. They're causing the unit tests to not complete.
Disable RenderThread unittests. They're causing the unit tests to not complete.

TBR=jam
Review URL: http://codereview.chromium.org/159127

git-svn-id: http://src.chromium.org/svn/trunk/src@21165 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 69e1d5723c83aff6ff94c6bc2996c897f749c7d7
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