Disable user metrics reporting for chromium builds.
Disable user metrics reporting for chromium builds.

Review URL: http://codereview.chromium.org/62071

git-svn-id: http://src.chromium.org/svn/trunk/src@13286 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5ea3483629855608b78834f0464fd359063edd3a
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