Make miscellaneous_bindings and event_bindings Required as needed. Previously

chrome/renderer/resources/extensions/context_menus_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 contextMenus API.
 
 var binding = require('binding').Binding.create('contextMenus');
 
-var contextMenus = requireNative('context_menus');
-var GetNextContextMenuId = contextMenus.GetNextContextMenuId;
+var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var contextMenuNatives = requireNative('context_menus');
 var sendRequest = require('sendRequest').sendRequest;
-
-var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var Event = require('event_bindings').Event;
 
 binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
 
   chromeHidden.contextMenus = {};
   chromeHidden.contextMenus.generatedIdHandlers = {};
   chromeHidden.contextMenus.stringIdHandlers = {};
   var eventName = 'contextMenus';
-  chromeHidden.contextMenus.event = new chrome.Event(eventName);
+  chromeHidden.contextMenus.event = new Event(eventName);
   chromeHidden.contextMenus.getIdFromCreateProperties = function(prop) {
     if (typeof(prop.id) !== 'undefined')
       return prop.id;
     return prop.generatedId;
   };
   chromeHidden.contextMenus.handlersForId = function(id) {
     if (typeof(id) === 'number')
       return chromeHidden.contextMenus.generatedIdHandlers;
     return chromeHidden.contextMenus.stringIdHandlers;
   };
   chromeHidden.contextMenus.ensureListenerSetup = function() {
     if (chromeHidden.contextMenus.listening) {
       return;
     }
     chromeHidden.contextMenus.listening = true;
     chromeHidden.contextMenus.event.addListener(function() {
       // An extension context menu item has been clicked on - fire the onclick
       // if there is one.
       var id = arguments[0].menuItemId;
       var onclick = chromeHidden.contextMenus.handlersForId(id)[id];
       if (onclick) {
         onclick.apply(null, arguments);
       }
     });
   };
 
   apiFunctions.setHandleRequest('create', function() {
     var args = arguments;
-    var id = GetNextContextMenuId();
+    var id = contextMenuNatives.GetNextContextMenuId();
     args[0].generatedId = id;
     var optArgs = {
       customCallback: this.customCallback,
     };
     sendRequest(this.name, args, this.definition.parameters, optArgs);
     return chromeHidden.contextMenus.getIdFromCreateProperties(args[0]);
   });
 
   apiFunctions.setCustomCallback('create', function(name, request, response) {
     if (chrome.runtime.lastError) {
@@ skipping 33 matching lines @@
                                  function(name, request, response) {
     if (chrome.runtime.lastError) {
       return;
     }
     chromeHidden.contextMenus.generatedIdHandlers = {};
     chromeHidden.contextMenus.stringIdHandlers = {};
   });
 });
 
 exports.binding = binding.generate();