[gnome-todo] arrow-frame: fix memory leak

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 704de5ef51d8daad1a342044bb6d70f9a1b454d4
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Jul 20 20:18:32 2015 -0300

    arrow-frame: fix memory leak
    
    Destroy the pan gesture on finalize, otherwise it'll
    get leaked.

 src/gtd-arrow-frame.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/gtd-arrow-frame.c b/src/gtd-arrow-frame.c
index 1cb5215..60fc58f 100644
--- a/src/gtd-arrow-frame.c
+++ b/src/gtd-arrow-frame.c
@@ -135,6 +135,8 @@ gtd_arrow_frame_finalize (GObject *object)
   GtdArrowFrame *self = (GtdArrowFrame *)object;
   GtdArrowFramePrivate *priv = gtd_arrow_frame_get_instance_private (self);
 
+  g_clear_object (&priv->pan_gesture);
+
   G_OBJECT_CLASS (gtd_arrow_frame_parent_class)->finalize (object);
 }