Add support for AMD to the extensions module system.

extensions/renderer/resources/set_icon.js

 // Copyright 2014 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.
 
-var SetIconCommon = requireNative('setIcon').SetIconCommon;
+var SetIconCommon = requireNative('set_icon_natives').SetIconCommon;
 var sendRequest = require('sendRequest').sendRequest;
 
 function loadImagePath(path, iconSize, actionType, callback) {
   var img = new Image();
   img.onerror = function() {
     console.error('Could not load ' + actionType + ' icon \'' +
                   path + '\'.');
   };
   img.onload = function() {
     var canvas = document.createElement('canvas');
@@ skipping 106 matching lines @@
       throw new Error('The path property should contain either string or ' +
                       'dictionary of strings.');
     }
   } else {
     throw new Error(
         'Either the path or imageData property must be specified.');
   }
 }
 
 exports.setIcon = setIcon;