Make miscellaneous_bindings and event_bindings Required as needed. Previously

chrome/renderer/resources/extensions/context_menus_custom_bindings.js

Index: chrome/renderer/resources/extensions/context_menus_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/context_menus_custom_bindings.js b/chrome/renderer/resources/extensions/context_menus_custom_bindings.js
index 4b0a9363a39fdeb91b125e498e6accf3eaface00..aa5cb570456fd8aaac50a5809589c10eac685e7e 100644
--- a/chrome/renderer/resources/extensions/context_menus_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/context_menus_custom_bindings.js
@@ -6,11 +6,10 @@
 
 var binding = require('binding').Binding.create('contextMenus');
 
-var contextMenus = requireNative('context_menus');
-var GetNextContextMenuId = contextMenus.GetNextContextMenuId;
-var sendRequest = require('sendRequest').sendRequest;
-
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var contextMenuNatives = requireNative('context_menus');
+var sendRequest = require('sendRequest').sendRequest;
+var Event = require('event_bindings').Event;
 
 binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
@@ -19,7 +18,7 @@ binding.registerCustomHook(function(bindingsAPI) {
   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;
@@ -48,7 +47,7 @@ binding.registerCustomHook(function(bindingsAPI) {
 
   apiFunctions.setHandleRequest('create', function() {
     var args = arguments;
-    var id = GetNextContextMenuId();
+    var id = contextMenuNatives.GetNextContextMenuId();
     args[0].generatedId = id;
     var optArgs = {
       customCallback: this.customCallback,