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

BUG=30264
TEST=none
TBR=stuartmorgan
Review URL: http://codereview.chromium.org/3032013

git-svn-id: http://src.chromium.org/svn/trunk/src@53255 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 015ad1a00fc4150336d5900e1cff60682e37f787
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