[empathy] Take advantage of tp_clear_object().

[Travis Reitter <treitter src gnome org>]

commit 784be67cd65bcf43252d1d48067ca909add9b26e
Author: Travis Reitter <treitter gmail com>
Date:   Fri Jul 9 17:41:51 2010 -0700

    Take advantage of tp_clear_object().

 libempathy-gtk/empathy-individual-view.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/libempathy-gtk/empathy-individual-view.c b/libempathy-gtk/empathy-individual-view.c
index 360d37e..7aedea8 100644
--- a/libempathy-gtk/empathy-individual-view.c
+++ b/libempathy-gtk/empathy-individual-view.c
@@ -243,8 +243,7 @@ individual_view_tooltip_destroy_cb (GtkWidget *widget,
   if (priv->tooltip_widget != NULL)
     {
       DEBUG ("Tooltip destroyed");
-      g_object_unref (priv->tooltip_widget);
-      priv->tooltip_widget = NULL;
+      tp_clear_object (&priv->tooltip_widget);
     }
 }