[rygel] media-export: Fix unowned variable assignment

[Jens Georg <jensgeorg src gnome org>]

commit b2ac495aa4f173dc8036f045c50fce5e5ce6b140
Author: Jens Georg <jensg openismus com>
Date:   Tue Sep 3 10:49:39 2013 +0200

    media-export: Fix unowned variable assignment

 .../rygel-media-export-item-factory.vala           |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/media-export/rygel-media-export-item-factory.vala 
b/src/plugins/media-export/rygel-media-export-item-factory.vala
index 84c0717..14296b9 100644
--- a/src/plugins/media-export/rygel-media-export-item-factory.vala
+++ b/src/plugins/media-export/rygel-media-export-item-factory.vala
@@ -273,7 +273,7 @@ namespace Rygel.MediaExport.ItemFactory {
         if (sample == null) {
             return item;
         }
-        var structure = sample.get_caps ().get_structure (0);
+        unowned Structure structure = sample.get_caps ().get_structure (0);
 
         int image_type;
         structure.get_enum ("image-type",