[rygel] server: Make ContentDirectoryError internal.

[Murray Cumming <murrayc src gnome org>]

commit 4ff5495d740dceb086af31ef4b8d111253971201
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Sep 11 11:51:23 2012 +0200

    server: Make ContentDirectoryError internal.
    
    Because it is used by ContentDirectory, which is internal.
    
    This removes it from the librygel-server API documentation.

 src/librygel-server/rygel-content-directory.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/librygel-server/rygel-content-directory.vala b/src/librygel-server/rygel-content-directory.vala
index dea1b87..8aed373 100644
--- a/src/librygel-server/rygel-content-directory.vala
+++ b/src/librygel-server/rygel-content-directory.vala
@@ -28,7 +28,7 @@ using Gee;
 /**
  * Errors used by ContentDirectory and deriving classes.
  */
-public errordomain Rygel.ContentDirectoryError {
+internal errordomain Rygel.ContentDirectoryError {
     NO_SUCH_OBJECT = 701,
     INVALID_SORT_CRITERIA = 709,
     RESTRICTED_OBJECT = 711,