[nautilus] toolbar: disconnect the GSettings callback on dispose

[Cosimo Cecchi <cosimoc src gnome org>]

commit a0d9614d204d0494d329e04c1d7652e451c2573f
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Jun 3 17:38:30 2011 -0400

    toolbar: disconnect the GSettings callback on dispose

 src/nautilus-toolbar.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-toolbar.c b/src/nautilus-toolbar.c
index 59824b7..305dbf6 100644
--- a/src/nautilus-toolbar.c
+++ b/src/nautilus-toolbar.c
@@ -210,6 +210,9 @@ nautilus_toolbar_dispose (GObject *obj)
 	g_clear_object (&self->priv->ui_manager);
 	g_clear_object (&self->priv->action_group);
 
+	g_signal_handlers_disconnect_by_func (nautilus_preferences,
+					      toolbar_update_appearance, self);
+
 	G_OBJECT_CLASS (nautilus_toolbar_parent_class)->dispose (obj);
 }