Fix ChromeOS build by putting back define from previous patch (tried incorrectly to clean this up).
Fix ChromeOS build by putting back define from previous patch (tried
incorrectly to clean this up).

TEST=none
BUG=none
Review URL: http://codereview.chromium.org/2858054

git-svn-id: http://src.chromium.org/svn/trunk/src@52445 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3e4f3c6811aecb5a8b7f8fff448e38b36fba90ac
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