Fix message routing for BrowserPlugin in iframe

extensions/renderer/guest_view/extensions_guest_view_container.h

Index: extensions/renderer/guest_view/extensions_guest_view_container.h
diff --git a/extensions/renderer/guest_view/extensions_guest_view_container.h b/extensions/renderer/guest_view/extensions_guest_view_container.h
index f654b542ea4e04f8378c3b8346b357e9890aadc7..1fbe126203c9726d49536451ccf694a5a4d6f022 100644
--- a/extensions/renderer/guest_view/extensions_guest_view_container.h
+++ b/extensions/renderer/guest_view/extensions_guest_view_container.h
@@ -84,13 +84,10 @@ class ExtensionsGuestViewContainer : public GuestViewContainer {
                                    v8::Isolate* isolate);
 
   // BrowserPluginDelegate implementation.
+  bool OnMessageReceived(const IPC::Message& message) override;
   void SetElementInstanceID(int element_instance_id) override;
   void Ready() override;
 
-  // GuestViewContainer override.
-  bool HandlesMessage(const IPC::Message& message) override;
-  bool OnMessage(const IPC::Message& message) override;
-
  private:
   void OnHandleCallback(const IPC::Message& message);