+void _gtk_app_chooser_online_get_default_async (GAsyncReadyCallback callback,
+ gpointer user_data);
+GtkAppChooserOnline * _gtk_app_chooser_online_get_default_finish (GObject *source,
+ GAsyncResult *result);
+
+void _gtk_app_chooser_online_search_for_mimetype_async (GtkAppChooserOnline *self,
+ const gchar *content_type,
+ GtkWindow *parent,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+gboolean _gtk_app_chooser_online_search_for_mimetype_finish (GtkAppChooserOnline *self,
+ GAsyncResult *res,
+ GError **error);