<webview>: Implement declarativeWebRequest API

chrome/renderer/resources/extensions/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 16 matching lines @@
 //       callback, {urls: 'http://*.google.com/*'});
 //   ^ callback will only be called for onBeforeRequests matching the filter.
 function WebRequestEvent(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 ? opt_webViewInstanceId : 0;
+  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);
+        new eventBindings.Event(eventName, opt_argSchemas, opt_eventOptions,
+                                opt_webViewInstanceId);
   }
 }
 
 // Test if the given callback is registered for this event.
 WebRequestEvent.prototype.hasListener = function(cb) {
   if (!this.eventOptions_.supportsListeners)
     throw new Error('This event does not support listeners.');
   return this.findListener_(cb) > -1;
 };
 
@@ skipping 115 matching lines @@
   apiFunctions.setHandleRequest('eventHandled', function() {
     var args = $Array.slice(arguments);
     sendRequest(this.name, args, this.definition.parameters,
                 {forIOThread: true});
   });
 });
 
 webRequestInternal = binding.generate();
 exports.binding = webRequestInternal;
 exports.WebRequestEvent = WebRequestEvent;