GitLab

The small icon is a 16x16 image in the bottom right of all notification
templates.  Currently it is not exposed to the JS API, but instead is used
only by internal API systems (starting with synced notifications.)

BUG=284592

Review URL: https://codereview.chromium.org/149433005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247875 0039d316-1c4b-4281-b951-d872f2087c98