[mutter] frame: destroy window->frame_bounds when destroying the frame

[Rui Matos <rtcm src gnome org>]

commit 9f54f1d75d2eae557e982454682080b201917e0c
Author: Rui Matos <tiagomatos gmail com>
Date:   Mon Oct 3 13:59:16 2011 +0100

    frame: destroy window->frame_bounds when destroying the frame
    
    Since window->frame_bounds is used as a cache we need to invalidate it when
    destroying the frame.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=660773

 src/core/frame.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/core/frame.c b/src/core/frame.c
index 8d0c06b..33e0c6f 100644
--- a/src/core/frame.c
+++ b/src/core/frame.c
@@ -217,6 +217,11 @@ meta_window_destroy_frame (MetaWindow *window)
                                     frame->xwindow);
   
   window->frame = NULL;
+  if (window->frame_bounds)
+    {
+      cairo_region_destroy (window->frame_bounds);
+      window->frame_bounds = NULL;
+    }
 
   /* Move keybindings to window instead of frame */
   meta_window_grab_keys (window);