Turn on content-security-policy for chrome://syncpromo webui page.

chrome/browser/resources/sync_promo.js

 // Copyright (c) 2011 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.
 
+// TODO(sail): Refactor options_page and remove this include.
+<include src="options/options_page.js"/>
+<include src="sync_setup_overlay.js"/>
+
 cr.define('sync_promo', function() {
   /**
    * SyncPromo class
    * Subclass of options.SyncSetupOverlay that customizes the sync setup
    * overlay for use in the new tab page.
    * @class
    */
   function SyncPromo() {
     options.SyncSetupOverlay.call(this, 'syncSetup',
                                   templateData.syncSetupOverlayTitle,
@@ skipping 212 matching lines @@
 
   // Export
   return {
     SyncPromo : SyncPromo
   };
 });
 
 var OptionsPage = options.OptionsPage;
 var SyncSetupOverlay = sync_promo.SyncPromo;
 window.addEventListener('DOMContentLoaded', sync_promo.SyncPromo.initialize);