Fix build break on mac.
Fix build break on mac.

TBR=evan

Review URL: http://codereview.chromium.org/159031

git-svn-id: http://src.chromium.org/svn/trunk/src@21012 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b47df704bb65e8b01bb0e9ed024b3cbffc7b6237
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