[cogl] pipeline: Plug a leak of GLists

[Damien Lespiau <dlespiau src gnome org>]

commit 711a817d8cbe2736332ddadae7f6915af54e22ff
Author: Damien Lespiau <damien lespiau intel com>
Date:   Wed Jul 6 19:18:22 2011 +0100

    pipeline: Plug a leak of GLists
    
    _cogl_pipeline_get_layers() allocates a list on the pipeline to be able
    to get the pointer valid as long as possible and store that list in the
    pipeline object.
    
    You need to free that list when freeing the pipeline.
    
    Signed-off-by: Robert Bragg <robert linux intel com>

 cogl/cogl-pipeline.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/cogl/cogl-pipeline.c b/cogl/cogl-pipeline.c
index 739036b..ceb04c2 100644
--- a/cogl/cogl-pipeline.c
+++ b/cogl/cogl-pipeline.c
@@ -562,6 +562,8 @@ _cogl_pipeline_free (CoglPipeline *pipeline)
       g_list_free (pipeline->layer_differences);
     }
 
+  g_list_free (pipeline->deprecated_get_layers_list);
+
   g_slice_free (CoglPipeline, pipeline);
 }