Inline signin UI should auto focus gaia frame

chrome/browser/resources/gaia_auth/main.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.
 
 /**
  * Authenticator class wraps the communications between Gaia and its host.
  */
 function Authenticator() {
 }
 
@@ skipping 170 matching lines @@
       'method': 'authPageLoaded',
       'isSAML': this.samlPageLoaded_
     }, this.parentPage_);
   },
 
   onLoginUILoaded: function() {
     var msg = {
       'method': 'loginUILoaded'
     };
     window.parent.postMessage(msg, this.parentPage_);
+    $('gaia-frame').focus();

[xiyuan, 2013/12/02 19:26:37]

This might interfere with chromeos login screen's focus handling. In cros login
screen, gaia could be loaded in the background with the account pods visible and
we don't want to put focus to gaia in this case. We need to differentiate and
only do this for inline signin flow.

[guohui, 2013/12/02 19:32:00]

Done.

   },
 
   onConfirmLogin_: function() {
     if (!this.samlPageLoaded_) {
       this.completeLogin(this.email_, this.password_);
       return;
     }
 
     this.samlSupportChannel_.sendWithCallback(
         {name: 'getScrapedPasswords'},
@@ skipping 52 matching lines @@
     } else if (msg.method == 'navigate' &&
                this.isParentMessage_(e)) {
        $('gaia-frame').src = msg.src;
     } else {
       console.error('Authenticator.onMessage: unknown message + origin!?');
     }
   }
 };
 
 Authenticator.getInstance().initialize();