[vala] gtk+-3.0: make drag_begin event arg nullable

[Evan Nemerson <evann src gnome org>]

commit 83f929fe4e005adad21874d6156dbfba7b122aaf
Author: Evan Nemerson <evan coeus-group com>
Date:   Mon Feb 18 22:47:54 2013 -0800

    gtk+-3.0: make drag_begin event arg nullable
    
    Fixes bug 691237.

 vapi/gtk+-3.0.vapi                       |    2 +-
 vapi/packages/gtk+-3.0/gtk+-3.0.metadata |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/vapi/gtk+-3.0.vapi b/vapi/gtk+-3.0.vapi
index 7511daf..f41f2be 100644
--- a/vapi/gtk+-3.0.vapi
+++ b/vapi/gtk+-3.0.vapi
@@ -8344,7 +8344,7 @@ namespace Gtk {
        [CCode (cheader_filename = "gtk/gtk.h")]
        public static int distribute_natural_allocation (int extra_space, uint n_requested_sizes, 
Gtk.RequestedSize sizes);
        [CCode (cheader_filename = "gtk/gtk.h")]
-       public static unowned Gdk.DragContext drag_begin (Gtk.Widget widget, Gtk.TargetList targets, 
Gdk.DragAction actions, int button, Gdk.Event event);
+       public static unowned Gdk.DragContext drag_begin (Gtk.Widget widget, Gtk.TargetList targets, 
Gdk.DragAction actions, int button, Gdk.Event? event);
        [CCode (cheader_filename = "gtk/gtk.h")]
        public static bool drag_check_threshold (Gtk.Widget widget, int start_x, int start_y, int current_x, 
int current_y);
        [CCode (cheader_filename = "gtk/gtk.h")]
diff --git a/vapi/packages/gtk+-3.0/gtk+-3.0.metadata b/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
index 83168d6..a16ca7a 100644
--- a/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
+++ b/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
@@ -239,6 +239,7 @@ gtk_dialog_new_with_buttons.title nullable="1"
 gtk_dialog_new_with_buttons.parent nullable="1"
 gtk_dialog_set_alternative_button_order sentinel="-1"
 gtk_draw_insertion_cursor deprecated_since="3.4" replacement="render_insertion_cursor"
+gtk_drag_begin.event nullable="1"
 GtkDialog::response has_emitter="1"
 GtkDialog.vbox type_name="VBox"
 GtkDialog.action_area type_name="HButtonBox"