<webview>: Implement WebRequest API

chrome/renderer/resources/extensions/web_view.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.
 
 // Shim that simulates a <webview> tag via Mutation Observers.
 //
 // The actual tag is implemented via the browser plugin. The internals of this
 // are hidden via Shadow DOM.
 
 var chrome = requireNative('chrome').GetChrome();
@@ skipping 111 matching lines @@
       get: function() {
         return objectNode[attributeName];
       },
       set: function(value) {
         objectNode[attributeName] = value;
       },
       enumerable: true
     });
   }, this);
 
+
   // We cannot use {writable: true} property descriptor because we want dynamic
   // getter value.
   Object.defineProperty(this.node_, 'contentWindow', {
     get: function() {
       // TODO(fsamuel): This is a workaround to enable
       // contentWindow.postMessage until http://crbug.com/152006 is fixed.
       if (objectNode.contentWindow)
         return objectNode.contentWindow.self;
       console.error('contentWindow is not available at this time. ' +
           'It will become available when the page has finished loading.');
     },
     // No setter.
     enumerable: true
   });
 
   for (var eventName in WEB_VIEW_EVENTS) {
     this.setupEvent_(eventName, WEB_VIEW_EVENTS[eventName]);
   }
   this.maybeSetupNewWindowEvent_();
   this.maybeSetupPermissionEvent_();
   this.maybeSetupExecuteCodeAPI_();
+  this.maybeSetupWebRequestEvents_();
 }
 
 /**
  * @private
  */
 WebView.prototype.handleMutation_ = function(mutation) {
   // This observer monitors mutations to attributes of the <webview> and
   // updates the BrowserPlugin properties accordingly. In turn, updating
   // a BrowserPlugin property will update the corresponding BrowserPlugin
   // attribute, if necessary. See BrowserPlugin::UpdateDOMAttribute for more
@@ skipping 54 matching lines @@
  * @private
  */
 WebView.prototype.maybeSetupPermissionEvent_ = function() {};
 
 /**
  * Implemented when experimental permission is available.
  * @private
  */
 WebView.prototype.maybeSetupExecuteScript_ = function() {};
 
+/**
+ * Implemented when experimental permission is available.
+ * @private
+ */
+WebView.prototype.maybeSetupWebRequestEvents_ = function() {};
+
 exports.WebView = WebView;