Make miscellaneous_bindings and event_bindings Required as needed. Previously

chrome/renderer/resources/extensions/chrome_setting.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.
 
 var chrome = requireNative('chrome').GetChrome();
+var Event = require('event_bindings').Event;
 var sendRequest = require('sendRequest').sendRequest;
 var validate = require('schemaUtils').validate;
 
 function extendSchema(schema) {
   var extendedSchema = schema.slice();
   extendedSchema.unshift({'type': 'string'});
   return extendedSchema;
 }
 
 function ChromeSetting(prefKey, valueSchema) {
@@ skipping 12 matching lines @@
                        [prefKey, details, callback],
                        extendSchema(setSchema));
   };
   this.clear = function(details, callback) {
     var clearSchema = this.functionSchemas.clear.definition.parameters;
     validate([details, callback], clearSchema);
     return sendRequest('types.ChromeSetting.clear',
                        [prefKey, details, callback],
                        extendSchema(clearSchema));
   };
-  this.onChange = new chrome.Event('types.ChromeSetting.' + prefKey +
-                                   '.onChange');
+  this.onChange = new Event('types.ChromeSetting.' + prefKey + '.onChange');
 };
 
 exports.ChromeSetting = ChromeSetting;