Move handling of dialog preferences to Preferences class

chrome/browser/resources/options/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 448 matching lines @@
                      data: {}};
         if (disabled) {
           entry.command = null;
           entry.tooltip =
               loadTimeData.getString('dataRoamingDisableToggleTooltip');
         } else {
           var self = this;
           entry.command = function() {
             options.Preferences.setBooleanPref(
                 'cros.signed.data_roaming_enabled',
-                !enableDataRoaming_);
+                !enableDataRoaming_, true);
             // Force revalidation of the menu the next time it is displayed.
             self.menu_ = null;
           };
         }
         addendum.push(entry);
       }
       var list = this.data.rememberedNetworks;
       if (list && list.length > 0) {
         var callback = function(list) {
           $('remembered-network-list').clear();
@@ skipping 646 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
   };
 });