DOMUI: Hide the sync section if sync is disabled.

chrome/browser/resources/options/personal_options.js

 // Copyright (c) 2010 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', function() {
 
   var OptionsPage = options.OptionsPage;
 
   // State variables.
   var syncEnabled = false;
@@ skipping 78 matching lines @@
     showStopSyncingOverlay_: function(event) {
       AlertOverlay.show(
           localStrings.getString('stop_syncing_title'),
           localStrings.getString('stop_syncing_explanation'),
           localStrings.getString('stop_syncing_confirm_button_label'),
           undefined,
           function() { chrome.send('stopSyncing'); });
     },
 
     setElementVisible_: function(element, visible) {
-      element.style.display = visible ? 'inline' : 'none';
+      if (visible)
+        element.classList.remove('hidden');
+      else
+        element.classList.add('hidden');
     },
 
     setElementClassSyncError_: function(element, visible) {
       visible ? element.classList.add('sync-error') :
                 element.classList.remove('sync-error');
     },
 
     setSyncEnabled_: function(enabled) {
       this.syncEnabled = enabled;
     },
@@ skipping 58 matching lines @@
       if (!cr.isChromeOS && navigator.platform.match(/linux|BSD/i)) {
         $('themes_GTK_button').disabled = !enabled;
       }
     },
 
     setClassicThemeButtonEnabled_: function(enabled) {
       if (!cr.isChromeOS && navigator.platform.match(/linux|BSD/i)) {
         $('themes_set_classic').disabled = !enabled;
       }
     },
+
+    hideSyncSection_: function() {
+      this.setElementVisible_($('sync-section'), false);
+    },
   };
 
   // Forward public APIs to private implementations.
   [
     'setSyncEnabled',
     'setSyncSetupCompleted',
     'setAccountPicture',
     'setSyncStatus',
     'setSyncStatusErrorVisible',
     'setSyncActionLinkErrorVisible',
     'setSyncActionLinkEnabled',
     'setSyncActionLinkLabel',
     'setStartStopButtonVisible',
     'setStartStopButtonEnabled',
     'setStartStopButtonLabel',
     'setCustomizeButtonVisible',
     'setCustomizeButtonEnabled',
     'setCustomizeButtonLabel',
     'setGtkThemeButtonEnabled',
     'setClassicThemeButtonEnabled',
+    'hideSyncSection',
   ].forEach(function(name) {
     PersonalOptions[name] = function(value) {
       PersonalOptions.getInstance()[name + '_'](value);
     };
   });
 
   // Export
   return {
     PersonalOptions: PersonalOptions
   };
 
 });