GitLab

Adds a test and removes the ChromeOS-specific notification
that previously existed only for notifying the
EulaAcceptedNotifierChromeos class.

BUG=245437
TEST=New unit test, no functionality change.

Review URL: https://chromiumcodereview.appspot.com/16129004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204031 0039d316-1c4b-4281-b951-d872f2087c98