Sanitize inheritance in callers of utils.expose

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;
 var utils = require('utils');
 var idGeneratorNatives = requireNative('id_generator');
 
 var webRequestInternal;
 
 function GetUniqueSubEventName(eventName) {
-  return eventName + "/" + idGeneratorNatives.GetNextId();
+  return eventName + '/' + idGeneratorNatives.GetNextId();
 }
 
 // WebRequestEventImpl object. This is used for special webRequest events
 // with extra parameters. Each invocation of addListener creates a new named
 // sub-event. That sub-event is associated with the extra parameters in the
 // browser process, so that only it is dispatched when the main event occurs
 // matching the extra parameters.
 //
 // Example:
 //   chrome.webRequest.onBeforeRequest.addListener(
 //       callback, {urls: 'http://*.google.com/*'});
 //   ^ callback will only be called for onBeforeRequests matching the filter.
 function WebRequestEventImpl(eventName, opt_argSchemas, opt_extraArgSchemas,
                              opt_eventOptions, opt_webViewInstanceId) {
   if (typeof eventName != 'string')
     throw new Error('chrome.WebRequestEvent requires an event name.');
 
   this.eventName = eventName;
   this.argSchemas = opt_argSchemas;
   this.extraArgSchemas = opt_extraArgSchemas;
   this.webViewInstanceId = opt_webViewInstanceId || 0;
   this.subEvents = [];
   this.eventOptions = eventBindings.parseEventOptions(opt_eventOptions);
   if (this.eventOptions.supportsRules) {
     this.eventForRules =
         new eventBindings.Event(eventName, opt_argSchemas, opt_eventOptions,
                                 opt_webViewInstanceId);
   }
 }
+$Object.setPrototypeOf(WebRequestEventImpl.prototype, null);
 
 // Test if the given callback is registered for this event.
 WebRequestEventImpl.prototype.hasListener = function(cb) {
   if (!this.eventOptions.supportsListeners)
     throw new Error('This event does not support listeners.');
   return this.findListener_(cb) > -1;
 };
 
 // Test if any callbacks are registered fur thus event.
 WebRequestEventImpl.prototype.hasListeners = function() {
@@ skipping 129 matching lines @@
     'removeListener',
     'addRules',
     'removeRules',
     'getRules',
   ],
 });
 
 webRequestInternal = binding.generate();
 exports.$set('binding', webRequestInternal);
 exports.$set('WebRequestEvent', WebRequestEvent);