Fix non-matching filename

osu.Game/Overlays/Direct/DownloadState.cs

@@ -0,0 +1,13 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+namespace osu.Game.Overlays.Direct
+{
+    public enum DownloadState
+    {
+        NotDownloaded,
+        Downloading,
+        Downloaded,
+        LocallyAvailable
+    }
+}