[polari] lib: Use g_set_object()

[Florian Müllner <fmuellner src gnome org>]

commit eed4d195d7d4f9320e32e625e7e4b1706f229596
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Dec 20 16:59:01 2014 +0100

    lib: Use g_set_object()
    
    Cut down on a bit of boilerplate ...

 src/lib/polari-room.c |   10 ++--------
 1 files changed, 2 insertions(+), 8 deletions(-)
---
diff --git a/src/lib/polari-room.c b/src/lib/polari-room.c
index 0da348d..f9d02f6 100644
--- a/src/lib/polari-room.c
+++ b/src/lib/polari-room.c
@@ -448,14 +448,8 @@ polari_room_set_account (PolariRoom *room,
 
   priv = room->priv;
 
-  if (priv->account == account)
-    return;
-
-  if (priv->account)
-    g_object_unref (priv->account);
-  priv->account = g_object_ref (account);
-
-  g_object_notify_by_pspec (G_OBJECT (room), props[PROP_ACCOUNT]);
+  if (g_set_object (&priv->account, account))
+    g_object_notify_by_pspec (G_OBJECT (room), props[PROP_ACCOUNT]);
 }
 
 static void