Add reporting notification to the enterprise banner on the CrOS login screen.

chrome/browser/resources/chromeos/login/oobe.css

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * This is the stylesheet used by the Out of the box experience (OOBE) flow,
  * sign in and lock screens.
  */
 
 html,
 body {
@@ skipping 748 matching lines @@
   width: 100%;
 }
 
 #notification-area a {
   color: rgb(37, 79, 155);
 }
 
 #notification-area .butter-bar {
   margin: 0 auto;
   max-width: 850px;
-}
+}