Compile chrome://settings, part 8: the final battle

chrome/browser/resources/options/chromeos/display_overscan.js

 // Copyright (c) 2013 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 Page = cr.ui.pageManager.Page;
   var PageManager = cr.ui.pageManager.PageManager;
 
   /**
    * Encapsulated handling of the 'DisplayOverscan' page.
    * @constructor
    * @extends {cr.ui.pageManager.Page}
    */
   function DisplayOverscan() {
     Page.call(this, 'displayOverscan',
               loadTimeData.getString('displayOverscanPageTabTitle'),
               'display-overscan-page');
   }
 
   cr.addSingletonGetter(DisplayOverscan);
 
   DisplayOverscan.prototype = {
     __proto__: Page.prototype,
 
     /**
      * The ID of the target display.
-     * @private
+     * @private {?string}
      */
     id_: null,
 
     /**
      * The keyboard event handler function.
      * @private
      */
     keyHandler_: null,
 
     /** @override */
@@ skipping 113 matching lines @@
 
   DisplayOverscan.onOverscanCanceled = function() {
     DisplayOverscan.getInstance().onOverscanCanceled_();
   };
 
   // Export
   return {
     DisplayOverscan: DisplayOverscan
   };
 });