Added the onResize and onContentResize events to GuestViewEvents.

extensions/renderer/resources/guest_view/guest_view_container.js

 // Copyright 2014 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.
 
 // This module implements the shared functionality for different guestview
 // containers, such as web_view, app_view, etc.
 
 var DocumentNatives = requireNative('document_natives');
 var GuestView = require('guestView').GuestView;
 var GuestViewInternalNatives = requireNative('guest_view_internal');
@@ skipping 96 matching lines @@
       return;
     }
     this.guest.attach(this.internalInstanceId,
                       this.viewInstanceId,
                       this.buildParams());
   }
 };
 
 GuestViewContainer.prototype.onElementResize = function(oldWidth, oldHeight,
                                                         newWidth, newHeight) {
+  // Dispatch the 'resize' event.
+  var resizeEvent = new Event('resize', { bubbles: true });
+  resizeEvent.oldWidth = oldWidth;
+  resizeEvent.oldHeight = oldHeight;
+  resizeEvent.newWidth = newWidth;
+  resizeEvent.newHeight = newHeight;
+  this.dispatchEvent(resizeEvent);
+
   if (!this.guest.getId())
     return;
-  this.guest.setSize(
-      {normal: {width: newWidth, height: newHeight}});
+  this.guest.setSize({normal: {width: newWidth, height: newHeight}});
 };
 
 GuestViewContainer.prototype.buildParams = function() {
   var params = this.buildContainerParams();
   params['instanceId'] = this.viewInstanceId;
   var elementRect = this.element.getBoundingClientRect();
   params['elementWidth'] = parseInt(elementRect.width);
   params['elementHeight'] = parseInt(elementRect.height);
   return params;
 };
@@ skipping 96 matching lines @@
   // Delete the callbacks so developers cannot call them and produce unexpected
   // behavior.
   delete proto.createdCallback;
   delete proto.attachedCallback;
   delete proto.detachedCallback;
   delete proto.attributeChangedCallback;
 }
 
 // Exports.
 exports.GuestViewContainer = GuestViewContainer;