Adds suppression for main menu on chrome os which is currently leaked.
Adds suppression for main menu on chrome os which is currently leaked.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/399099

git-svn-id: http://src.chromium.org/svn/trunk/src@32516 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: fbef6030e365d7ff8fe9702cbfcd8e38469cbe6a
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