Gaia loading screen changed to align with new Sync screen UI.

chrome/browser/resources/chromeos/login/screen_gaia_signin.js

 // 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.
 
 /**
  * @fileoverview Oobe signin screen implementation.
  */
 
 login.createScreen('GaiaSigninScreen', 'gaia-signin', function() {
   // Gaia loading time after which error message must be displayed and
@@ skipping 176 matching lines @@
      * @param {boolean} show True to show loading UI.
      * @private
      */
     showLoadingUI_: function(show) {
       $('gaia-loading').hidden = !show;
       $('signin-frame').hidden = show;
       $('signin-right').hidden = show;
       $('enterprise-info-container').hidden = show;
       $('gaia-signin-divider').hidden = show;
       this.classList.toggle('loading', show);
+      if (!show)
+        this.classList.remove('auth-completed');
     },
 
     /**
      * Handler for Gaia loading suspiciously long timeout.
      * @private
      */
     onLoadingSuspiciouslyLong_: function() {
       if (this != Oobe.getInstance().currentScreen)
         return;
       chrome.send('showLoadingTimeoutError');
@@ skipping 400 matching lines @@
         }
       } else {
         chrome.send('completeLogin',
                     [credentials.gaiaId,
                      credentials.email,
                      credentials.password,
                      credentials.usingSAML]);
       }
 
       this.loading = true;
+      this.classList.add('auth-completed');
       // Now that we're in logged in state header should be hidden.
       Oobe.getInstance().headerHidden = true;
       // Clear any error messages that were shown before login.
       Oobe.clearErrors();
     },
 
     /**
      * Invoked when onAuthCompleted message received.
      * @param {!Object} e Payload of the received HTML5 message.
      * @private
@@ skipping 138 matching lines @@
      * Handler for webview error handling.
      * @param {!Object} data Additional information about error event like:
      * {string} error Error code such as "ERR_INTERNET_DISCONNECTED".
      * {string} url The URL that failed to load.
      */
     onWebviewError: function(data) {
       chrome.send('webviewLoadAborted', [data.error]);
     },
   };
 });