[clutter-gst/clutter-gst-3.0] video-sink: fix overlays memory leak on destruction

[Lionel Landwerlin <llandwerlin src gnome org>]

commit 3e890b6f08e08b603f4d85700f8c3bea419973bd
Author: Fabrice Bellet <fabrice bellet info>
Date:   Sun Dec 18 16:25:10 2016 +0000

    video-sink: fix overlays memory leak on destruction

 clutter-gst/clutter-gst-video-sink.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/clutter-gst/clutter-gst-video-sink.c b/clutter-gst/clutter-gst-video-sink.c
index d62be46..6281eb3 100644
--- a/clutter-gst/clutter-gst-video-sink.c
+++ b/clutter-gst/clutter-gst-video-sink.c
@@ -2222,6 +2222,12 @@ clutter_gst_video_sink_dispose (GObject *object)
       priv->renderers = NULL;
     }
 
+  if (priv->overlays)
+    {
+      g_boxed_free (CLUTTER_GST_TYPE_OVERLAYS, priv->overlays);
+      priv->overlays = NULL;
+    }
+
   G_OBJECT_CLASS (clutter_gst_video_sink_parent_class)->dispose (object);
 }