Add indication of camera use on SAML webcam logins

chrome/browser/resources/chromeos/login/screen_gaia_signin.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.
  */
 
 #gaia-signin {
   height: 528px;
   width: 448px;
 }
 
@@ skipping 48 matching lines @@
   box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.17);
   display: flex;
   height: 44px;
   justify-content: center;
   left: 0;
   position: absolute;
   right: 0;
   top: 0;
 }
 
+#saml-notice-recording-indicator {
+  padding-left: 10px;
+  padding-right: 10px;
+}
+
 #saml-notice-message {
   color: rgb(106, 106, 106);
   font-size: 13px;
 }
 
 #gaia-whitelist-error {
   bottom: 0;
   display: block;
   left: 0;
   position: absolute;
@@ skipping 21 matching lines @@
   right: 0;
   top: 0;
   z-index: 1;
 }
 
 .loading #gaia-navigation,
 .full-width #gaia-navigation {
   color: rgba(0, 0, 0, .54);
 }