[empathy] use TpAccountChannelRequest Conference high level API

[Guillaume Desmottes <gdesmott src gnome org>]

commit 8d7b620729e05462e2f03eeaf1b3689305b0ba32
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Tue Feb 25 17:33:56 2014 +0100

    use TpAccountChannelRequest Conference high level API
    
    https://bugzilla.gnome.org/show_bug.cgi?id=725070

 libempathy/empathy-tp-chat.c |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/libempathy/empathy-tp-chat.c b/libempathy/empathy-tp-chat.c
index 730c8ac..92e634e 100644
--- a/libempathy/empathy-tp-chat.c
+++ b/libempathy/empathy-tp-chat.c
@@ -208,13 +208,10 @@ empathy_tp_chat_add (EmpathyTpChat *self,
       req = tp_account_channel_request_new_text (account,
         TP_USER_ACTION_TIME_NOT_USER_ACTION);
 
-      tp_account_channel_request_set_request_property (req,
-          TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_CHANNELS,
-          g_variant_new_objv (channels, -1));
+      tp_account_channel_request_set_conference_initial_channels (req,
+          channels);
 
-      tp_account_channel_request_set_request_property (req,
-          TP_PROP_CHANNEL_INTERFACE_CONFERENCE_INITIAL_INVITEE_IDS,
-          g_variant_new_strv (invitees, -1));
+      tp_account_channel_request_set_initial_invitee_ids (req, invitees);
 
       /* FIXME: InvitationMessage ? */