Add support for AMD to the extensions module system.

chrome/renderer/resources/extensions/tabs_custom_bindings.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.
 
 // Custom binding for the tabs API.
 
 var binding = require('binding').Binding.create('tabs');
 
 var messaging = require('messaging');
-var tabsNatives = requireNative('tabs');
+var tabsNatives = requireNative('tabs_natives');
 var OpenChannelToTab = tabsNatives.OpenChannelToTab;
 var sendRequestIsDisabled = requireNative('process').IsSendRequestDisabled();
 
 binding.registerCustomHook(function(bindingsAPI, extensionId) {
   var apiFunctions = bindingsAPI.apiFunctions;
   var tabs = bindingsAPI.compiledApi;
 
   apiFunctions.setHandleRequest('connect', function(tabId, connectInfo) {
     var name = '';
     if (connectInfo) {
@@ skipping 12 matching lines @@
   });
 
   apiFunctions.setHandleRequest('sendMessage',
                                 function(tabId, message, responseCallback) {
     var port = tabs.connect(tabId, {name: messaging.kMessageChannel});
     messaging.sendMessageImpl(port, message, responseCallback);
   });
 });
 
 exports.binding = binding.generate();