[totem] skipto: Fix dialogue not showing up

[Bastien Nocera <hadess src gnome org>]

commit 3367d1fd8f163e2416535623bc4daf935a595cba
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Aug 25 14:43:02 2015 +0200

    skipto: Fix dialogue not showing up
    
    The dialogue wasn't showing up because GtkBuilder couldn't find
    the TotemTimeEntry class. Import it and reference it so it can be found
    by GtkBuilder.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=753402

 src/plugins/skipto/totem-skipto.c |   13 ++++++++++---
 1 files changed, 10 insertions(+), 3 deletions(-)
---
diff --git a/src/plugins/skipto/totem-skipto.c b/src/plugins/skipto/totem-skipto.c
index 1821b76..faeccbd 100644
--- a/src/plugins/skipto/totem-skipto.c
+++ b/src/plugins/skipto/totem-skipto.c
@@ -40,6 +40,7 @@
 #include "totem-dirs.h"
 #include "totem-skipto.h"
 #include "totem-uri.h"
+#include "totem-time-entry.h"
 #include "backend/bacon-video-widget.h"
 
 static void totem_skipto_dispose       (GObject *object);
@@ -54,6 +55,7 @@ struct TotemSkiptoPrivate {
        GtkLabel *seconds_label;
        gint64 time;
        Totem *totem;
+       gpointer class_ref;
 };
 
 G_DEFINE_TYPE (TotemSkipto, totem_skipto, GTK_TYPE_DIALOG)
@@ -94,9 +96,13 @@ totem_skipto_dispose (GObject *object)
        TotemSkipto *skipto;
 
        skipto = TOTEM_SKIPTO (object);
-       if (skipto->priv && skipto->priv->xml != NULL) {
-               g_object_unref (skipto->priv->xml);
-               skipto->priv->xml = NULL;
+       if (skipto->priv) {
+               g_clear_object (&skipto->priv->xml);
+
+               if (skipto->priv->class_ref != NULL) {
+                       g_type_class_unref (skipto->priv->class_ref);
+                       skipto->priv->class_ref = NULL;
+               }
        }
 
        G_OBJECT_CLASS (totem_skipto_parent_class)->dispose (object);
@@ -167,6 +173,7 @@ totem_skipto_new (TotemObject *totem)
        guint label_length;
 
        skipto = TOTEM_SKIPTO (g_object_new (TOTEM_TYPE_SKIPTO, NULL));
+       skipto->priv->class_ref = g_type_class_ref (TOTEM_TYPE_TIME_ENTRY);
 
        skipto->priv->totem = totem;
        skipto->priv->xml = totem_plugin_load_interface ("skipto",