Consistently decorate pref values sent to the settings UI code

chrome/browser/resources/options2/chromeos/accounts_user_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.accounts', function() {
   /** @const */ var List = cr.ui.List;
   /** @const */ var ListItem = cr.ui.ListItem;
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
 
   /**
@@ skipping 14 matching lines @@
       List.prototype.decorate.call(this);
 
       // HACK(arv): http://crbug.com/40902
       window.addEventListener('resize', this.redraw.bind(this));
 
       var self = this;
 
       // Listens to pref changes.
       Preferences.getInstance().addEventListener(this.pref,
           function(event) {
-            self.load_(event.value);
+            self.load_(event.value.value);
           });
     },
 
     createItem: function(user) {
       return new UserListItem(user);
     },
 
     /**
      * Finds the index of user by given username (canonicalized email).
      * @private
@@ skipping 139 matching lines @@
     updatePicture: function() {
       this.icon_.src = 'chrome://userimage/' + this.user.username +
                        '?id=' + (new Date()).getTime();
     }
   };
 
   return {
     UserList: UserList
   };
 });