[totem] backend: Add debug when a query fails

[Bastien Nocera <hadess src gnome org>]

commit 708a400d24d1cbf0bb5b087e40acaa2486566cb5
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Oct 25 10:52:47 2012 +0200

    backend: Add debug when a query fails

 src/backend/bacon-video-widget.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/backend/bacon-video-widget.c b/src/backend/bacon-video-widget.c
index 7fdb748..b3247a5 100644
--- a/src/backend/bacon-video-widget.c
+++ b/src/backend/bacon-video-widget.c
@@ -2482,6 +2482,8 @@ bvw_query_buffering_timeout (BaconVideoWidget *bvw)
 
       return FALSE;
     }
+  } else {
+    g_debug ("Failed to query the source element for buffering info in percent");
   }
   gst_query_unref (query);