Fix delete-event callback function

Author: robert-ancell

shell/platform/linux/fl_view.cc

@@ -91,7 +91,9 @@ G_DEFINE_TYPE_WITH_CODE(
                                       fl_view_text_input_delegate_iface_init))
 
 // Signal handler for GtkWidget::delete-event
-static gboolean window_delete_event_cb(GtkWidget* widget, FlView* self) {
+static gboolean window_delete_event_cb(GtkWidget* widget,
+                                       GdkEvent* event,
+                                       FlView* self) {
   fl_platform_plugin_request_app_exit(self->platform_plugin);
   // Stop the event from propagating.
   return TRUE;