[gtk+] dialog: Stop exporting action_box

[Matthias Clasen <matthiasc src gnome org>]

commit a7489153b019127367fc243c643303ad7ea48707
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 28 22:36:27 2016 -0500

    dialog: Stop exporting action_box
    
    This was not meant as an internal child that subclasses
    can refer to in their .ui files.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761254

 gtk/gtkdialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkdialog.c b/gtk/gtkdialog.c
index f8476ac..ad1828a 100644
--- a/gtk/gtkdialog.c
+++ b/gtk/gtkdialog.c
@@ -663,7 +663,7 @@ gtk_dialog_class_init (GtkDialogClass *class)
   gtk_widget_class_bind_template_child_internal_private (widget_class, GtkDialog, vbox);
   gtk_widget_class_bind_template_child_internal_private (widget_class, GtkDialog, headerbar);
   gtk_widget_class_bind_template_child_internal_private (widget_class, GtkDialog, action_area);
-  gtk_widget_class_bind_template_child_internal_private (widget_class, GtkDialog, action_box);
+  gtk_widget_class_bind_template_child_private (widget_class, GtkDialog, action_box);
   gtk_widget_class_bind_template_callback (widget_class, gtk_dialog_delete_event_handler);
 
   gtk_widget_class_set_css_name (widget_class, "dialog");