Moved the code for registering extensions and creating instances to

StreamDecoder.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@154 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/openal/OggStreamDecoder.java

@@ -33,8 +33,7 @@ import com.jmex.sound.openAL.objects.util.OggInputStream;
 /**
  * Decodes Ogg Vorbis streams.
  */
-public class OggStreamDecoder
-    implements StreamDecoder
+public class OggStreamDecoder extends StreamDecoder
 {
     // documentation inherited
     public void init (InputStream in)