Add a valgrind suppression.
Add a valgrind suppression.

BUG=22031
TEST=none
Review URL: http://codereview.chromium.org/235024

git-svn-id: http://src.chromium.org/svn/trunk/src@27226 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 2b0d9bfefdbbc69ac64028bb95f6b8bf57f2e507
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