Options: Fix android app settings visibility.

chrome/browser/resources/options/browser_options.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.exportPath('options');
 
 /**
  * @typedef {{actionLinkText: (string|undefined),
  *            childUser: (boolean|undefined),
  *            hasError: (boolean|undefined),
@@ skipping 814 matching lines @@
                  el.dataset.extensionId.length;
         });
         if (button)
           chrome.send('disableExtension', [button.dataset.extensionId]);
       });
 
       // Setup ARC section.
       if (cr.isChromeOS) {
         $('android-apps-settings-label').innerHTML =
             loadTimeData.getString('androidAppsSettingsLabel');
-        $('android-apps-enabled').addEventListener('change', function(e) {
+        Preferences.getInstance().addEventListener('arc.enabled', function(e) {
           var settings = $('android-apps-settings');
-          if (!settings)
+          // Only change settings visibility on committed settings changes.
+          if (!settings || e.value.uncommitted)
             return;
-          settings.hidden = !$('android-apps-enabled').checked;
+          settings.hidden = !e.value.value;
         });
+
         $('android-apps-settings-link').addEventListener('click', function(e) {
             chrome.send('showAndroidAppsSettings');
         });
       }
     },
 
     /** @override */
     didShowPage: function() {
       $('search-field').focus();
     },
@@ skipping 1594 matching lines @@
 
       settings.hidden = !isVisible;
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 });