Compile chrome://settings, part 2: reduce from 950 to 400 errors

chrome/browser/resources/options/deletable_item_list.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 List = cr.ui.List;
   /** @const */ var ListItem = cr.ui.ListItem;
 
   /**
    * Creates a deletable list item, which has a button that will trigger a call
    * to deleteItemAtIndex(index) in the list.
+   * @constructor
+   * @extends {cr.ui.ListItem}
    */
   var DeletableItem = cr.ui.define('li');
 
   DeletableItem.prototype = {
     __proto__: ListItem.prototype,
 
     /**
      * The element subclasses should populate with content.
      * @type {HTMLElement}
      * @private
@@ skipping 166 matching lines @@
      */
     deleteItemAtIndex: function(index) {
     },
   };
 
   return {
     DeletableItemList: DeletableItemList,
     DeletableItem: DeletableItem,
   };
 });