[gtk] Fix the previous commit

[Matthias Clasen <matthiasc src gnome org>]

commit 7a1aefc7f3f7ad39498c58cf79d82c28e2e0b245
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 2 00:43:27 2020 -0500

    Fix the previous commit
    
    We need to actually use the right coordinates.

 gtk/gtkstackswitcher.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkstackswitcher.c b/gtk/gtkstackswitcher.c
index f32d6d4e76..07de3af617 100644
--- a/gtk/gtkstackswitcher.c
+++ b/gtk/gtkstackswitcher.c
@@ -267,7 +267,7 @@ gtk_stack_switcher_drag_motion (GtkWidget *widget,
     {
       int cx, cy;
       gtk_widget_translate_coordinates (GTK_WIDGET (self), value, x, y, &cx, &cy);
-      if (gtk_widget_contains (GTK_WIDGET (value), x, y))
+      if (gtk_widget_contains (GTK_WIDGET (value), cx, cy))
         {
           button = GTK_WIDGET (value);
           retval = TRUE;