GitLab

The Mac policy provider loads policies for the browser. This change makes it
additionally load policies for the extensions described in the PolicyDomainDescriptor
for extensions.

BUG=108992

Review URL: https://chromiumcodereview.appspot.com/15038007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202597 0039d316-1c4b-4281-b951-d872f2087c98