options: Remove a bunch of useless:

chrome/browser/resources/options/startup_overlay.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.define('options', function() {
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
   /** @const */ var OptionsPage = options.OptionsPage;
   /** @const */ var SettingsDialog = options.SettingsDialog;
 
   /**
@@ skipping 20 matching lines @@
      * @type {HTMLElement}
      * @private
      */
     autocompleteList_: null,
 
     startup_pages_pref_: {
       'name': 'session.startup_urls',
       'disabled': false
     },
 
-    /**
-     * Initialize the page.
-     */
+    /** @override */
     initializePage: function() {
       SettingsDialog.prototype.initializePage.call(this);
 
       var self = this;
 
       var startupPagesList = $('startupPagesList');
       options.browser_options.StartupPageList.decorate(startupPagesList);
       startupPagesList.autoExpands = true;
 
       $('startupUseCurrentButton').onclick = function(event) {
@@ skipping 112 matching lines @@
       var instance = StartupOverlay.getInstance();
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
     StartupOverlay: StartupOverlay
   };
 });