Remove use of GtkVBox in GTK3

The GtkVBox class is deprecated, in favour of just using the
GtkBox class directly. Eventually even GtkBox will be
deprecated in favour of GtkGrid, but that is a bigger fix
which can wait.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-id: 1361805646-6425-6-git-send-email-berrange@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

ui/gtk.c

@@ -1264,7 +1264,11 @@ void gtk_display_init(DisplayState *ds)
     s->dcl.dpy_refresh = gd_refresh;
 
     s->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+#if GTK_CHECK_VERSION(3, 2, 0)
+    s->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+#else
     s->vbox = gtk_vbox_new(FALSE, 0);
+#endif
     s->notebook = gtk_notebook_new();
     s->drawing_area = gtk_drawing_area_new();
     s->menu_bar = gtk_menu_bar_new();