[mutter] window: Fix build

[Jasper St. Pierre <jstpierre src gnome org>]

commit 64a915a68ddd492709474db3e89c80c847e94ebe
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Aug 15 16:08:25 2014 -0400

    window: Fix build
    
    I break things a lot now.

 src/core/window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 5036818..c9d19d2 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -6120,7 +6120,7 @@ meta_window_handle_mouse_grab_op_event  (MetaWindow         *window,
     {
     case CLUTTER_BUTTON_PRESS:
       {
-        ClutterModifierType grab_mods = meta_display_get_window_grab_modifiers (display);
+        ClutterModifierType grab_mods = meta_display_get_window_grab_modifiers (window->display);
 
         /* This is the keybinding or menu case where we've
          * been dragging around the window without the button