widget: Fix UPDATES debug rendering

Choose the right widget to add the debug updates to (the one with the
window) and the correct region (the one in that window's coordinates).

diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 96b9c98271dbae9ef72a6dbccf5302742013edd3..b2e13dfb3d784a43d93ee14e857b2eb5659aa00d 100644 (file)
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -5295,7 +5295,7 @@ gtk_widget_queue_draw_region (GtkWidget            *widget,
   cairo_region_translate (region2, x, y);
 
 invalidate:
-  gtk_debug_updates_add (widget, region);
+  gtk_debug_updates_add (parent, region2);
   gdk_window_invalidate_region (_gtk_widget_get_window (widget), region2, TRUE);
 
   cairo_region_destroy (region2);