Fixed button focusing in OOBE screens.

chrome/browser/resources/chromeos/login/oobe_screen_network.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 network screen implementation.
  */
 
 cr.define('oobe', function() {
   /**
@@ skipping 53 matching lines @@
     /**
      * Buttons in oobe wizard's button strip.
      * @type {array} Array of Buttons.
      */
     get buttons() {
       var buttons = [];
 
       var continueButton = this.ownerDocument.createElement('button');
       continueButton.id = 'continue-button';
       continueButton.textContent = localStrings.getString('continueButton');
+      continueButton.autofocus = true;
       continueButton.addEventListener('click', function(e) {
         chrome.send('networkOnExit');
         e.stopPropagation();
       });
       buttons.push(continueButton);
 
       return buttons;
     }
   };
 
@@ skipping 10 matching lines @@
 
     $('bubble').showContentForElement($('networks-list'),
                                       cr.ui.Bubble.Attachment.BOTTOM,
                                       error);
   };
 
   return {
     NetworkScreen: NetworkScreen
   };
 });