Remove ThreadSanitizer suppression for 22272.
Remove ThreadSanitizer suppression for 22272.

The race was specific to unit-test code (see r29826) and should be fixed now.

BUG=22272

Review URL: http://codereview.chromium.org/293042

git-svn-id: http://src.chromium.org/svn/trunk/src@30301 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: f99dc2ed65b38c56da9126c7d70b137dc2e3d653
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