Don't use symbols deprecated by Cogl
Don't use symbols deprecated by Cogl

cogl_texture_ref/unref() is deprecated in favour of the more generic
cogl_handle_ref/unref(), so let's use that.

lubosz/clutter-gst,GNOME/clutter-gst,lubosz/clutter-gst,lubosz/clutter-gst,skinkie/clutter-gst,skinkie/clutter-gst,ystreet/clutter-gst,ystreet/clutter-gst,GNOME/clutter-gst,ystreet/clutter-gst,ystreet/clutter-gst,GNOME/clutter-gst,GNOME/clutter-gst,skinkie/clutter-gst