Async'd xml parsing - more to come on that

MediaBrowser.Controller/Xml/BaseItemXmlParser.cs

@@ -17,18 +17,15 @@ namespace MediaBrowser.Controller.Xml
         /// <summary>
         /// Fetches metadata for an item from one xml file
         /// </summary>
-        public Task Fetch(T item, string metadataFile)
-        {
-            // Wrapping this for now until I have a chance to async the whole process
-            return Task.Run(() =>
+        public async Task Fetch(T item, string metadataFile)
         {
             // Use XmlReader for best performance
-                using (XmlReader reader = XmlReader.Create(metadataFile))
+            using (XmlReader reader = XmlReader.Create(metadataFile, new XmlReaderSettings() { Async = true }))
             {
-                    reader.MoveToContent();
+                await reader.MoveToContentAsync();
 
                 // Loop through each element
-                    while (reader.Read())
+                while (await reader.ReadAsync())
                 {
                     if (reader.NodeType == XmlNodeType.Element)
                     {
@@ -47,7 +44,6 @@ namespace MediaBrowser.Controller.Xml
             {
                 item.DateModified = File.GetLastWriteTime(metadataFile);
             }
-            });
         }
 
         /// <summary>