[cogl] context: Don't forget to unref() the renderer if we create it ourselves

[Damien Lespiau <dlespiau src gnome org>]

commit 5433555f19ac73f3f236026f1bafca758d63c9fa
Author: Damien Lespiau <damien lespiau intel com>
Date:   Fri Jul 12 01:05:12 2013 +0100

    context: Don't forget to unref() the renderer if we create it ourselves
    
    cogl_display_new() takes a ref on the renderer, so code creating a
    renderer and not keeping a pointer to it do unref later needs to drop
    the ref immediately.
    
    Reviewed-by: Robert Bragg <robert linux intel com>

 cogl/cogl-context.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/cogl/cogl-context.c b/cogl/cogl-context.c
index 9b650bb..2a27b0c 100644
--- a/cogl/cogl-context.c
+++ b/cogl/cogl-context.c
@@ -185,6 +185,7 @@ cogl_context_new (CoglDisplay *display,
         }
 
       display = cogl_display_new (renderer, NULL);
+      cogl_object_unref(renderer);
     }
   else
     cogl_object_ref (display);