GitLab

Add support for configs with domains *.foo.bar.  Given a domain foo.bar, it
will first look for a config with domain foo.bar, then *.foo.bar, then *.bar.

BUG=396139

Review URL: https://codereview.chromium.org/404363003

Cr-Commit-Position: refs/heads/master@{#288428}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288428 0039d316-1c4b-4281-b951-d872f2087c98