[gtk+] overlay: Properly allocate the child upon addition

[Benjamin Otte <otte src gnome org>]

commit 6454c718dd5adfc10db51cb10966c002907d759b
Author: Benjamin Otte <otte redhat com>
Date:   Thu Dec 8 00:20:49 2011 +0100

    overlay: Properly allocate the child upon addition
    
    This ensures that after addition the child gets assigned the proper
    allocation and the child window is properly shown/hidden.

 gtk/gtkoverlay.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkoverlay.c b/gtk/gtkoverlay.c
index b964fff..b116ecb 100644
--- a/gtk/gtkoverlay.c
+++ b/gtk/gtkoverlay.c
@@ -628,6 +628,7 @@ gtk_overlay_add_overlay (GtkOverlay *overlay,
     {
       child->window = gtk_overlay_create_child_window (overlay, widget);
       gtk_widget_set_parent (widget, GTK_WIDGET (overlay));
+      gtk_overlay_child_allocate (overlay, child);
     }
   else
     gtk_widget_set_parent (widget, GTK_WIDGET (overlay));