Implement autosizing for <extensionoptions>

chrome/browser/guest_view/extension_options/extension_options_guest.cc

Index: chrome/browser/guest_view/extension_options/extension_options_guest.cc
diff --git a/chrome/browser/guest_view/extension_options/extension_options_guest.cc b/chrome/browser/guest_view/extension_options/extension_options_guest.cc
index 3c8c4f5666259bf073bae23f9ecff3a27a6843c4..ebfb825e6a116f42fef162477d1a3edf9ef91411 100644
--- a/chrome/browser/guest_view/extension_options/extension_options_guest.cc
+++ b/chrome/browser/guest_view/extension_options/extension_options_guest.cc
@@ -138,3 +138,13 @@ void ExtensionOptionsGuest::OnRequest(
   extension_function_dispatcher_->Dispatch(
       params, guest_web_contents()->GetRenderViewHost());
 }
+
+void ExtensionOptionsGuest::SizeChanged(const gfx::Size& old_size,
+                                       const gfx::Size& new_size) {

[not at google - send to devlin, 2014/07/30 17:44:56]

indentation

[ericzeng, 2014/07/30 23:29:26]

Done.

+  scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
+  args->SetInteger(extensionoptions::kWidth, new_size.width());
+  args->SetInteger(extensionoptions::kHeight, new_size.height());

[not at google - send to devlin, 2014/07/30 17:44:57]

better:

OnSizeChanged event;
event.width = new_size.width();
event.height = new_size.height();
DispatchEventToEmbedder(new GuestViewBase::Event(
    OnSizeChanged::kEventName, event.ToValue()));

or thereabouts.

[ericzeng, 2014/07/30 23:29:26]

GuestViewBase would need some refactoring in order to make this change.
OnSizeChanged::Create returns a base::ListValue, but GuestViewBase::Event
requires a base::DictionaryValue in the constructor. 

+  DispatchEventToEmbedder(new GuestViewBase::Event(
+      extensions::api::extension_options_internal::OnSizeChanged::kEventName,

[not at google - send to devlin, 2014/07/30 17:44:56]

you might want to "using extensions::api::extension_options_internal" at the top
to pull all of these in.

[ericzeng, 2014/07/30 23:29:25]

Done.

+      args.Pass()));
+}