[gtk+] Expand the container_remove hack

[Matthias Clasen <matthiasc src gnome org>]

commit 68d77b1823e0caa7236c89cd72421dd884bdbc95
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Nov 20 15:30:29 2015 -0500

    Expand the container_remove hack
    
    Make it possible to use gtk_container_remove on GtkShortcutsWindow.
    glade needs this.

 gtk/gtkcontainer.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkcontainer.c b/gtk/gtkcontainer.c
index 9c4b81d..48d1644 100644
--- a/gtk/gtkcontainer.c
+++ b/gtk/gtkcontainer.c
@@ -52,6 +52,7 @@
 #include "a11y/gtkcontaineraccessible.h"
 #include "a11y/gtkcontaineraccessibleprivate.h"
 #include "gtkpopovermenu.h"
+#include "gtkshortcutswindow.h"
 
 /**
  * SECTION:gtkcontainer
@@ -1894,7 +1895,8 @@ gtk_container_remove (GtkContainer *container,
   g_return_if_fail (_gtk_widget_get_parent (widget) == GTK_WIDGET (container) ||
                     GTK_IS_ASSISTANT (container) ||
                     GTK_IS_ACTION_BAR (container) ||
-                    GTK_IS_POPOVER_MENU (container));
+                    GTK_IS_POPOVER_MENU (container) ||
+                    GTK_IS_SHORTCUTS_WINDOW (container));
 
   g_object_ref (container);
   g_object_ref (widget);