Added the onResize and onContentResize events to GuestViewEvents.

extensions/browser/guest_view/guest_view_base.cc

Index: extensions/browser/guest_view/guest_view_base.cc
diff --git a/extensions/browser/guest_view/guest_view_base.cc b/extensions/browser/guest_view/guest_view_base.cc
index 7e5568711db5d64b17226cc211db8ede3f94a465..9fbc20c71cc6e302256b71025087b39adf1b86e9 100644
--- a/extensions/browser/guest_view/guest_view_base.cc
+++ b/extensions/browser/guest_view/guest_view_base.cc
@@ -243,7 +243,10 @@ void GuestViewBase::DispatchOnResizeEvent(const gfx::Size& old_size,
   args->SetInteger(guestview::kOldHeight, old_size.height());
   args->SetInteger(guestview::kNewWidth, new_size.width());
   args->SetInteger(guestview::kNewHeight, new_size.height());
+  scoped_ptr<base::DictionaryValue> args_copy(args.get()->DeepCopy());
   DispatchEventToGuestProxy(new Event(guestview::kEventResize, args.Pass()));
+  DispatchEventToView(
+      new Event(guestview::kEventContentResize, args_copy.Pass()));

[Fady Samuel, 2015/03/05 20:24:55]

I'm confused about this. Why are you dispatching two events here?

[paulmeyer, 2015/03/05 20:30:36]

One goes to the guest, and one to the container, so that they both know about
the resize if there is a container. If not, the guest will still know and the
onresize property on the guest can still be used while it is detached.

[paulmeyer, 2015/03/06 18:31:02]

After talking about this offline, I have removed the view event and will instead
have GuestViewContainer track the guest event by storing its GuestView in a
custom property and always listening for its resize.

 }
 
 void GuestViewBase::SetSize(const SetSizeParams& params) {