Consistently decorate pref values sent to the settings UI code

chrome/browser/resources/options2/chromeos/network_list.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.
 
 cr.define('options.network', function() {
 
   var ArrayDataModel = cr.ui.ArrayDataModel;
   var List = cr.ui.List;
   var ListItem = cr.ui.ListItem;
   var Menu = cr.ui.Menu;
@@ skipping 744 matching lines @@
                    iconType: 'add-connection',
                    menu: [{label: loadTimeData.getString('addConnectionWifi'),
                            command: addConnection(Constants.TYPE_WIFI)},
                           {label: loadTimeData.getString('addConnectionVPN'),
                            command: addConnection(Constants.TYPE_VPN)}]
                   });
 
       var prefs = options.Preferences.getInstance();
       prefs.addEventListener('cros.signed.data_roaming_enabled',
           function(event) {
-            enableDataRoaming_ = event.value && event.value['value'] !=
-                undefined ? event.value['value'] : event.value;
+            enableDataRoaming_ = event.value.value;
           });
     },
 
     /**
      * When the list loses focus, unselect all items in the list and close the
      * active menu.
      * @private
      */
     onBlur_: function() {
       this.selectionModel.unselectAll();
@@ skipping 309 matching lines @@
    * Whether the Network list is disabled. Only used for display purpose.
    * @type {boolean}
    */
   cr.defineProperty(NetworkList, 'disabled', cr.PropertyKind.BOOL_ATTR);
 
   // Export
   return {
     NetworkList: NetworkList
   };
 });