[gtkmm] Overlay: Add new methods.

[Murray Cumming <murrayc src gnome org>]

commit 9c489efcc9c570666afb52e13b50285ccefdfeae
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Sep 15 10:47:44 2015 +0200

    Overlay: Add new methods.
    
    Add reorder_overlay() and get/set_overlay_pass_through().

 gtk/src/overlay.hg |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk/src/overlay.hg b/gtk/src/overlay.hg
index 7cb0e85..f409bb8 100644
--- a/gtk/src/overlay.hg
+++ b/gtk/src/overlay.hg
@@ -59,6 +59,10 @@ public:
 
   _WRAP_METHOD(void add_overlay(Gtk::Widget& widget), gtk_overlay_add_overlay)
 
+  _WRAP_METHOD(void reorder_overlay(Widget& child, int position), gtk_overlay_reorder_overlay)
+  _WRAP_METHOD(bool get_overlay_pass_through(Widget& widget) const, gtk_overlay_get_overlay_pass_through)
+  _WRAP_METHOD(void set_overlay_pass_through(Widget& widget, bool pass_through = true), 
gtk_overlay_set_overlay_pass_through)
+
 #m4 _CONVERSION(`GdkRectangle*',`Gdk::Rectangle&',`Glib::wrap($3)')
   _WRAP_SIGNAL(bool get_child_position(Gtk::Widget* widget, Gdk::Rectangle& allocation), 
"get-child-position")