[gnome-calendar] subscriber-view: add an autoptr cleanup function

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

commit a2edfd48b6c8b14e0b69f38a39b81ce0e2b6b3cc
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sat Oct 1 19:54:54 2016 -0300

    subscriber-view: add an autoptr cleanup function
    
    So that we can use G_DECLARE_{FINAL,DERIVABLE}_TYPE() utility macros.

 src/gcal-subscriber-view.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-subscriber-view.h b/src/gcal-subscriber-view.h
index 6805e76..dda9f35 100644
--- a/src/gcal-subscriber-view.h
+++ b/src/gcal-subscriber-view.h
@@ -60,6 +60,8 @@ struct _GcalSubscriberViewClass
   GtkWidget*     (*get_child_by_uuid)        (GcalSubscriberView *subscriber_view, const gchar *uuid);
 };
 
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (GcalSubscriberView, g_object_unref)
+
 GType          gcal_subscriber_view_get_type           (void);
 
 GtkWidget*     gcal_subscriber_view_get_child_by_uuid  (GcalSubscriberView *subscriber_view,