Enable Client ID generation on Linux/OS X.  Enables UMA logging.
Enable Client ID generation on Linux/OS X.  Enables UMA logging.

BUG=15418

Review URL: http://codereview.chromium.org/149758
Patch from Chris Masone <cmasone@google.com>.

git-svn-id: http://src.chromium.org/svn/trunk/src@21846 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 52cc7fd48cd2f57ca6647693fdaf8be263d7e057
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