MD Downloads: fix closure compilation issue

chrome/browser/resources/md_downloads/crisper.js

 // Copyright 2015 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.
 
 if (typeof Polymer == 'undefined')
   Polymer = {dom: 'shadow'};
 else
   console.error('Polymer is already defined.');
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
@@ skipping 16896 matching lines @@
       if (!this.showingSearch_)
         return;
 
       var searchInput = this.getSearchInput_();
       if (searchInput)
         searchInput.focus();
     });
   },
 
   /**
-   * @return {?HTMLElement}
+   * @return {?Element}
    * @private
    */
   getSearchInput_: function() {
     return this.$$('#search-input');
   },
 
   /** @private */
   onSearchTermSearch_: function() {
     if (this.delegate_)
       this.delegate_.onSearchTermSearch(this.getValue());
@@ skipping 306 matching lines @@
     Manager.get().updateItem_(index, data);
   };
 
   return {Manager: Manager};
 });
 // Copyright 2015 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.
 
 window.addEventListener('load', downloads.Manager.onLoad);