Suppress valgrind warning about UserCrosSettingsProvider.
Suppress valgrind warning about UserCrosSettingsProvider.

BUG=51134
TEST=None

Review URL: http://codereview.chromium.org/3084014

git-svn-id: http://src.chromium.org/svn/trunk/src@54890 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 50342e53da9bae3d64c53d7ab54631cbb4b92855
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