media: Quit MojoMediaApplication when no ServiceFactory service is bound.

media/mojo/services/mojo_media_application.h

Index: media/mojo/services/mojo_media_application.h
diff --git a/media/mojo/services/mojo_media_application.h b/media/mojo/services/mojo_media_application.h
index e932b5dd7c304911211ee0985c16f3beadf0ca5c..3233e03d2f480aceec18c396b18782f7c934dae7 100644
--- a/media/mojo/services/mojo_media_application.h
+++ b/media/mojo/services/mojo_media_application.h
@@ -32,6 +32,7 @@ class MojoMediaApplication
   void Create(mojo::ApplicationConnection* connection,
               mojo::InterfaceRequest<interfaces::ServiceFactory> request) final;
 
+  mojo::ApplicationImpl* app_impl_;
   scoped_refptr<MediaLog> media_log_;
 };