Valgrind Mac: Widen a suppression.
Valgrind Mac: Widen a suppression.

TBR=stuartmorgan
BUG=9351
TEST=none
Review URL: http://codereview.chromium.org/3013005

git-svn-id: http://src.chromium.org/svn/trunk/src@52593 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 906c4b390012408a03ecf6482d54f014422ff89e
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