Added the infrastructure for surfaceProxy.onResize() and SurfaceView.onResize()

extensions/renderer/resources/guest_view/guest_view_container.js

Index: extensions/renderer/resources/guest_view/guest_view_container.js
diff --git a/extensions/renderer/resources/guest_view/guest_view_container.js b/extensions/renderer/resources/guest_view/guest_view_container.js
index 876b60623de0658eda154e87ca06920835bbb73f..c085c9a0d6e54170cb533c755ca77d1cd6744152 100644
--- a/extensions/renderer/resources/guest_view/guest_view_container.js
+++ b/extensions/renderer/resources/guest_view/guest_view_container.js
@@ -6,7 +6,9 @@
 // containers, such as web_view, app_view, etc.
 
 var DocumentNatives = requireNative('document_natives');
+var EventBindings = require('event_bindings');
 var GuestView = require('guestView').GuestView;
+var GuestViewInternalNatives = requireNative('guest_view_internal');
 var IdGenerator = requireNative('id_generator');
 
 function GuestViewContainer(element, viewType) {
@@ -22,6 +24,8 @@ function GuestViewContainer(element, viewType) {
 
   var shadowRoot = this.element.createShadowRoot();
   shadowRoot.appendChild(privates(this).browserPluginElement);
+
+  this.setupResizeEvents();
 }
 
 // Forward public API methods from |proto| to their internal implementations.
@@ -81,6 +85,22 @@ GuestViewContainer.prototype.setupFocusPropagation = function() {
   }.bind(this));
 };
 
+GuestViewContainer.prototype.setupResizeEvents = function() {
+  // Track when the guest resizes using the onResize event.
+  var CreateEvent = function(name) {
+    var eventOpts = {supportsListeners: true, supportsFilters: true};
+    return new EventBindings.Event(name, undefined, eventOpts);
+  };
+  var resizeEvent = CreateEvent('guestViewInternal.onResize');

[Fady Samuel, 2015/01/15 21:40:12]

Remove this for now? This doesn't seem to do anything in this patch?

[paulmeyer, 2015/01/19 23:45:35]

Moved to guest_view.js, as discussed offline.

+  resizeEvent.addListener(function(e) {
+    this.onGuestResize(e.oldWidth, e.oldHeight, e.newWidth, e.newHeight);
+  }.bind(this), {instanceId: this.viewInstanceId});
+
+  // Track when the element resizes using the element resize callback.
+  GuestViewInternalNatives.RegisterElementResizeCallback(
+      this.internalInstanceId, this.onElementResize.bind(this));
+};
+
 GuestViewContainer.prototype.attachWindow = function() {
   if (!this.internalInstanceId) {
     return true;
@@ -114,6 +134,10 @@ GuestViewContainer.prototype.onElementAttached = function() {};
 GuestViewContainer.prototype.onElementDetached = function() {
   this.guest.destroy();
 };
+GuestViewContainer.prototype.onElementResize = function(oldWidth, oldHeight,
+                                                        newWidth, newHeight) {};
+GuestViewContainer.prototype.onGuestResize = function(oldWidth, oldHeight,
+                                                      newWidth, newHeight) {};
 
 // Registers the browser plugin <object> custom element. |viewType| is the
 // name of the specific guestview container (e.g. 'webview').