MD Settings: change outlinks to actually use <a>

chrome/browser/resources/settings/people_page/sync_browser_proxy.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview A helper object used from the the People section to get the
  * status of the sync backend and user preferences on what data to sync. Used
  * for both Chrome browser and ChromeOS.
  */
 cr.exportPath('settings');
@@ skipping 214 matching lines @@
     /** @override */
     setSyncEncryption: function(syncPrefs) {
       return cr.sendWithPromise('SyncSetupSetEncryption',
                                 JSON.stringify(syncPrefs));
     },
 
     /** @override */
     openActivityControlsUrl: function() {
       chrome.metricsPrivate.recordUserAction(
           'Signin_AccountSettings_GoogleActivityControlsClicked');
-      window.open(loadTimeData.getString('activityControlsUrl'));
     }
   };
 
   return {
     SyncBrowserProxy: SyncBrowserProxy,
     SyncBrowserProxyImpl: SyncBrowserProxyImpl,
   };
 });