[mutter] window-actor: Fix leaked opaque_region

[Florian Müllner <fmuellner src gnome org>]

commit 7db236b2a4160b5e9aa45f767e7743f432cbf5bb
Author: Pavel Vasin <rat4vier gmail com>
Date:   Mon Mar 4 19:00:14 2013 +0400

    window-actor: Fix leaked opaque_region
    
    https://bugzilla.gnome.org/show_bug.cgi?id=695135

 src/compositor/meta-window-actor.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/compositor/meta-window-actor.c b/src/compositor/meta-window-actor.c
index f9222ef..402329b 100644
--- a/src/compositor/meta-window-actor.c
+++ b/src/compositor/meta-window-actor.c
@@ -2201,6 +2201,7 @@ check_needs_reshape (MetaWindowActor *self)
 
   meta_shaped_texture_set_mask_texture (META_SHAPED_TEXTURE (priv->actor), NULL);
   g_clear_pointer (&priv->shape_region, cairo_region_destroy);
+  g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
 
 #ifdef HAVE_SHAPE
   if (priv->window->has_shape)