Break out the basic reliable QUIC stream functionality from the

net/tools/quic/quic_spdy_server_stream.h

Index: net/tools/quic/quic_spdy_server_stream.h
diff --git a/net/tools/quic/quic_spdy_server_stream.h b/net/tools/quic/quic_spdy_server_stream.h
index 12c84cdb92ee931fce7c4633d45ffbf993535493..ba0d3375974c29d38d261ced68ae9dd4b942976b 100644
--- a/net/tools/quic/quic_spdy_server_stream.h
+++ b/net/tools/quic/quic_spdy_server_stream.h
@@ -8,8 +8,8 @@
 #include <string>
 
 #include "net/base/io_buffer.h"
+#include "net/quic/quic_data_stream.h"
 #include "net/quic/quic_protocol.h"
-#include "net/quic/reliable_quic_stream.h"
 #include "net/tools/balsa/balsa_headers.h"
 
 namespace net {
@@ -24,7 +24,7 @@ class QuicSpdyServerStreamPeer;
 
 // All this does right now is aggregate data, and on fin, send an HTTP
 // response.
-class QuicSpdyServerStream : public ReliableQuicStream {
+class QuicSpdyServerStream : public QuicDataStream {
  public:
   QuicSpdyServerStream(QuicStreamId id, QuicSession* session);
   virtual ~QuicSpdyServerStream();