Valgrind Mac: Update a suppression for a leak.
Valgrind Mac: Update a suppression for a leak.

BUG=52681
TEST=none
Review URL: http://codereview.chromium.org/3156042

git-svn-id: http://src.chromium.org/svn/trunk/src@56888 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 9dab7f2f6fea4101d79cdc17c0ce0b34f83b7604
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