[vala] gtk+-2.0: Make GtkContainer::set_focus_child's argument nullable

[Evan Nemerson <evann src gnome org>]

commit d65ee9688799a2766e3121e779ff4fd17c48fe8a
Author: Evan Nemerson <evan coeus-group com>
Date:   Sat Mar 13 19:21:19 2010 -0800

    gtk+-2.0: Make GtkContainer::set_focus_child's argument nullable
    
    Fixes bug 611492.

 vapi/gtk+-2.0.vapi                       |    2 +-
 vapi/packages/gtk+-2.0/gtk+-2.0.metadata |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/vapi/gtk+-2.0.vapi b/vapi/gtk+-2.0.vapi
index 8b3b951..66c9d68 100644
--- a/vapi/gtk+-2.0.vapi
+++ b/vapi/gtk+-2.0.vapi
@@ -1101,7 +1101,7 @@ namespace Gtk {
 		[HasEmitter]
 		public virtual signal void remove (Gtk.Widget widget);
 		[HasEmitter]
-		public virtual signal void set_focus_child (Gtk.Widget widget);
+		public virtual signal void set_focus_child (Gtk.Widget? widget);
 	}
 	[CCode (cheader_filename = "gtk/gtk.h")]
 	public class Curve : Gtk.DrawingArea, Atk.Implementor, Gtk.Buildable {
diff --git a/vapi/packages/gtk+-2.0/gtk+-2.0.metadata b/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
index ada4ef5..1210297 100644
--- a/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
+++ b/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
@@ -122,6 +122,7 @@ GtkContainer::add has_emitter="1"
 GtkContainer::check_resize has_emitter="1"
 GtkContainer::remove has_emitter="1"
 GtkContainer::set_focus_child has_emitter="1"
+GtkContainer::set_focus_child.widget nullable="1"
 gtk_container_forall.callback_data hidden="1"
 gtk_container_foreach.callback_data hidden="1"
 gtk_container_get_children transfer_ownership="1" type_arguments="unowned Widget"