[mutter] screen: Add _GTK_FRAME_EXTENTS to _NET_SUPPORTED

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

commit ad159d3ebd2d5de677dc3110e862e8cd12421846
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Wed Aug 21 13:08:36 2013 -0400

    screen: Add _GTK_FRAME_EXTENTS to _NET_SUPPORTED

 src/core/screen.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/core/screen.c b/src/core/screen.c
index c947f0e..5efc65a 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -309,6 +309,8 @@ set_supported_hint (MetaScreen *screen)
 #include <meta/atomnames.h>
 #undef item
 #undef EWMH_ATOMS_ONLY
+
+    screen->display->atom__GTK_FRAME_EXTENTS,
   };
 
   XChangeProperty (screen->display->xdisplay, screen->xroot,