[Extensions] Update last_error.js, send_request.js

extensions/renderer/resources/web_request_internal_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 webRequestInternal API.
 
 var binding = require('binding').Binding.create('webRequestInternal');
 var eventBindings = require('event_bindings');
 var sendRequest = require('sendRequest').sendRequest;
 var validate = require('schemaUtils').validate;
@@ skipping 147 matching lines @@
     throw new Error('This event does not support rules.');
   this.eventForRules.getRules(ruleIdentifiers, cb);
 };
 
 binding.registerCustomHook(function(api) {
   var apiFunctions = api.apiFunctions;
 
   apiFunctions.setHandleRequest('addEventListener', function() {
     var args = $Array.slice(arguments);
     sendRequest(this.name, args, this.definition.parameters,
-                {forIOThread: true});
+                {__proto__: null, forIOThread: true});
   });
 
   apiFunctions.setHandleRequest('eventHandled', function() {
     var args = $Array.slice(arguments);
     sendRequest(this.name, args, this.definition.parameters,
-                {forIOThread: true});
+                {__proto__: null, forIOThread: true});
   });
 });
 
 var WebRequestEvent = utils.expose('WebRequestEvent',
                                    WebRequestEventImpl,
                                    { functions: [
   'hasListener',
   'hasListeners',
   'addListener',
   'removeListener',
   'addRules',
   'removeRules',
   'getRules'
 ] });
 
 webRequestInternal = binding.generate();
 exports.$set('binding', webRequestInternal);
 exports.$set('WebRequestEvent', WebRequestEvent);