[gegl] buffer: fix a warning about implicit declaration of gegl_buffer_backend2

[Ãyvind KolÃs <ok src gnome org>]

commit fdd7cf53ad50e80feedb7886bea0c2ba9981595a
Author: Ãyvind KolÃs <pippin gimp org>
Date:   Sat May 5 16:09:27 2012 +0200

    buffer: fix a warning about implicit declaration of gegl_buffer_backend2

 gegl/buffer/gegl-tile-storage.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gegl/buffer/gegl-tile-storage.c b/gegl/buffer/gegl-tile-storage.c
index 88e9032..80dba99 100644
--- a/gegl/buffer/gegl-tile-storage.c
+++ b/gegl/buffer/gegl-tile-storage.c
@@ -34,6 +34,7 @@
 #include "gegl-types-internal.h"
 #include "gegl-utils.h"
 #include "gegl-config.h"
+#include "gegl-buffer-private.h"
 
 
 G_DEFINE_TYPE (GeglTileStorage, gegl_tile_storage, GEGL_TYPE_TILE_HANDLER_CHAIN)
@@ -62,7 +63,7 @@ tile_storage_idle (gpointer data)
   return gegl_tile_source_idle (GEGL_TILE_SOURCE (tile_storage));
 }
 
-GeglTileBackend *gegl_buffer_backend (GObject *buffer);
+GeglTileBackend * gegl_buffer_backend (GeglBuffer *buffer);
 
 GeglTileStorage *
 gegl_tile_storage_new (GeglTileBackend *backend)