[gdm] Make greeter login window be a dock

[Ray Strode <halfline src gnome org>]

commit 98a1649b17320957b9a2521af07d15ba51c187c9
Author: Ray Strode <rstrode redhat com>
Date:   Thu Jul 16 22:02:54 2009 -0400

    Make greeter login window be a dock
    
    This makes it show up in the same alt-tab window as the panel
    along the bottom and works around lame metacity behavior where
    it shows a dialog at session end about clients that don't set a
    session id on their leader window.
    
    See http://bugzilla.gnome.org/show_bug.cgi?id=587732

 gui/simple-greeter/gdm-greeter-login-window.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gui/simple-greeter/gdm-greeter-login-window.c b/gui/simple-greeter/gdm-greeter-login-window.c
index 13b317c..ae95068 100644
--- a/gui/simple-greeter/gdm-greeter-login-window.c
+++ b/gui/simple-greeter/gdm-greeter-login-window.c
@@ -2002,6 +2002,7 @@ gdm_greeter_login_window_init (GdmGreeterLoginWindow *login_window)
         gtk_window_set_skip_taskbar_hint (GTK_WINDOW (login_window), TRUE);
         gtk_window_set_skip_pager_hint (GTK_WINDOW (login_window), TRUE);
         gtk_window_stick (GTK_WINDOW (login_window));
+        gtk_window_set_type_hint (GTK_WINDOW (login_window), GDK_WINDOW_TYPE_HINT_DOCK);
         gtk_container_set_border_width (GTK_CONTAINER (login_window), 0);
 
         g_signal_connect (login_window,