Tidy IReadOnlyPackage interface and implementations.

OpenRA.Game/FileSystem/BagFile.cs

@@ -21,13 +21,15 @@ namespace OpenRA.FileSystem
 {
 	public sealed class BagFile : IReadOnlyPackage
 	{
-		readonly string bagFilename;
+		public string Name { get; private set; }
+		public IEnumerable<string> Contents { get { return index.Keys; } }
+
 		readonly Stream s;
 		readonly Dictionary<string, IdxEntry> index;
 
 		public BagFile(FileSystem context, string filename)
 		{
-			bagFilename = filename;
+			Name = filename;
 
 			// A bag file is always accompanied with an .idx counterpart
 			// For example: audio.bag requires the audio.idx file
@@ -45,9 +47,7 @@ namespace OpenRA.FileSystem
 			s = context.Open(filename);
 		}
 
-		public string Name { get { return bagFilename; } }
-
-		public Stream GetContent(string filename)
+		public Stream GetStream(string filename)
 		{
 			IdxEntry entry;
 			if (!index.TryGetValue(filename, out entry))
@@ -113,16 +113,11 @@ namespace OpenRA.FileSystem
 			return mergedStream;
 		}
 
-		public bool Exists(string filename)
+		public bool Contains(string filename)
 		{
 			return index.ContainsKey(filename);
 		}
 
-		public IEnumerable<string> AllFileNames()
-		{
-			return index.Keys;
-		}
-
 		public void Dispose()
 		{
 			s.Dispose();