[gupnp-av] Add private getter of GUPnPXMLDoc from object.

[Jens Georg <jensgeorg src gnome org>]

commit ade20e788a431ffc20d855d297050f45437246e4
Author: Krzesimir Nowak <krnowak openismus com>
Date:   Fri Sep 7 14:23:21 2012 +0200

    Add private getter of GUPnPXMLDoc from object.
    
    Will be needed by container for setting child elements.

 libgupnp-av/gupnp-didl-lite-object-private.h |    6 ++++++
 libgupnp-av/gupnp-didl-lite-object.c         |   17 +++++++++++++++++
 2 files changed, 23 insertions(+), 0 deletions(-)
---
diff --git a/libgupnp-av/gupnp-didl-lite-object-private.h b/libgupnp-av/gupnp-didl-lite-object-private.h
index 780e495..5a01b20 100644
--- a/libgupnp-av/gupnp-didl-lite-object-private.h
+++ b/libgupnp-av/gupnp-didl-lite-object-private.h
@@ -1,8 +1,10 @@
 /*
  * Copyright (C) 2009 Nokia Corporation.
+ * Copyright (C) 2012 Intel Corporation
  *
  * Authors: Zeeshan Ali (Khattak) <zeeshan ali nokia com>
  *                                <zeeshanak gnome org>
+ *          Krzesimir Nowak <krnowak openismus com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -35,6 +37,10 @@ gupnp_didl_lite_object_new_from_xml     (xmlNode     *xml_node,
                                          xmlNs       *dc_ns,
                                          xmlNs       *dlna_ns);
 
+G_GNUC_INTERNAL GUPnPXMLDoc *
+gupnp_didl_lite_object_get_gupnp_xml_doc
+                                        (GUPnPDIDLLiteObject *object);
+
 G_END_DECLS
 
 #endif /* __GUPNP_DIDL_LITE_OBJECT_PRIVATE_H__ */
diff --git a/libgupnp-av/gupnp-didl-lite-object.c b/libgupnp-av/gupnp-didl-lite-object.c
index 316b754..aa6b150 100644
--- a/libgupnp-av/gupnp-didl-lite-object.c
+++ b/libgupnp-av/gupnp-didl-lite-object.c
@@ -890,6 +890,23 @@ gupnp_didl_lite_object_new_from_xml (xmlNode     *xml_node,
 }
 
 /**
+ * gupnp_didl_lite_object_get_gupnp_xml_doc:
+ * @object: The #GUPnPDIDLLiteObject
+ *
+ * Get the pointer to the XML document containing this object.
+ *
+ * Returns: (transfer none): The pointer to the XML document containing this
+ * object.
+ **/
+GUPnPXMLDoc *
+gupnp_didl_lite_object_get_gupnp_xml_doc (GUPnPDIDLLiteObject *object)
+{
+        g_return_val_if_fail (GUPNP_IS_DIDL_LITE_OBJECT (object), NULL);
+
+        return object->priv->xml_doc;
+}
+
+/**
  * gupnp_didl_lite_object_get_xml_node:
  * @object: The #GUPnPDIDLLiteObject
  *