[clutter] actor: Do not leak the layout manager

[Emmanuele Bassi <ebassi src gnome org>]

commit 2894587b221352241d8eb5fdb1136d9856c36b3c
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Tue Nov 29 18:10:57 2011 +0000

    actor: Do not leak the layout manager

 clutter/clutter-actor.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/clutter/clutter-actor.c b/clutter/clutter-actor.c
index 67c137a..e44fce4 100644
--- a/clutter/clutter-actor.c
+++ b/clutter/clutter-actor.c
@@ -3997,6 +3997,13 @@ clutter_actor_dispose (GObject *object)
   g_clear_object (&priv->effects);
   g_clear_object (&priv->flatten_effect);
 
+  if (priv->layout_manager != NULL)
+    {
+      clutter_layout_manager_set_container (priv->layout_manager, NULL);
+      g_object_unref (priv->layout_manager);
+      priv->layout_manager = NULL;
+    }
+
   G_OBJECT_CLASS (clutter_actor_parent_class)->dispose (object);
 }