[folks] Fix the type of an AsyncReadyCallback in Tpf.PersonaStore

[Philip Withnall <pwithnall src gnome org>]

commit 5e5a6897efa6702d1d7d23424b77c932e8ae06f1
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Tue Sep 14 17:18:44 2010 +0100

    Fix the type of an AsyncReadyCallback in Tpf.PersonaStore

 backends/telepathy/lib/tpf-persona-store.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/backends/telepathy/lib/tpf-persona-store.vala b/backends/telepathy/lib/tpf-persona-store.vala
index e603b7f..2da10c1 100644
--- a/backends/telepathy/lib/tpf-persona-store.vala
+++ b/backends/telepathy/lib/tpf-persona-store.vala
@@ -369,7 +369,7 @@ public class Tpf.PersonaStore : Folks.PersonaStore
     {
       Connection c = (Connection) s;
       this.ll.connection_connect_to_new_group_channels (c,
-          this.new_group_channels_cb);
+          (AsyncReadyCallback) this.new_group_channels_cb);
 
       this.add_standard_channel (c, "publish");
       this.add_standard_channel (c, "stored");
@@ -380,7 +380,7 @@ public class Tpf.PersonaStore : Folks.PersonaStore
       this.initialise_favourite_contacts.begin ();
     }
 
-  private void new_group_channels_cb (Channel channel)
+  private void new_group_channels_cb (Channel? channel, AsyncResult result)
     {
       if (channel == null)
         {