[gupnp-av] Fix some string casts

[Jens Georg <jensgeorg src gnome org>]

commit 7769e13bb37a33a43b387a3681e0513ebc11a544
Author: Jens Georg <mail jensge org>
Date:   Sun Jun 29 13:48:16 2014 +0200

    Fix some string casts
    
    Signed-off-by: Jens Georg <mail jensge org>

 libgupnp-av/fragment-util.c            | 4 ++--
 libgupnp-av/gupnp-didl-lite-resource.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/libgupnp-av/fragment-util.c b/libgupnp-av/fragment-util.c
index bf5653c..dde7c06 100644
--- a/libgupnp-av/fragment-util.c
+++ b/libgupnp-av/fragment-util.c
@@ -717,9 +717,9 @@ fragment_util_check_fragments (DocNode     *original,
             /* If the child element is title or class,
              * it must not be set to empty or removed.
              */
-            if (g_strrstr ((char *) current_doc->children->children->name,
+            if (g_strrstr ((const char *) current_doc->children->children->name,
                            "title") != NULL ||
-                g_strrstr ((char *) current_doc->children->children->name,
+                g_strrstr ((const char *) current_doc->children->children->name,
                            "class") != NULL) {
                 /* If the new tag has no corresponding title or class element */
                 if (new_doc->children->children == NULL) {
diff --git a/libgupnp-av/gupnp-didl-lite-resource.c b/libgupnp-av/gupnp-didl-lite-resource.c
index 2a497a2..8bfe436 100644
--- a/libgupnp-av/gupnp-didl-lite-resource.c
+++ b/libgupnp-av/gupnp-didl-lite-resource.c
@@ -1883,7 +1883,7 @@ gupnp_didl_lite_resource_set_subtitle_file_uri
                 xmlSetNsProp (resource->priv->xml_node,
                               resource->priv->pv_ns,
                               (unsigned char *) "subtitleFileUri",
-                              (unsigned char *) uri);
+                              (xmlChar *) uri);
         }
 
         g_object_notify (G_OBJECT (resource), "subtitle-file-uri");
@@ -1920,7 +1920,7 @@ gupnp_didl_lite_resource_set_subtitle_file_type
                 xmlSetNsProp (resource->priv->xml_node,
                               resource->priv->pv_ns,
                               (unsigned char *) "subtitleFileType",
-                              (unsigned char *) type);
+                              (xmlChar *) type);
         }
 
         g_object_notify (G_OBJECT (resource), "subtitle-file-type");