Rename QuicDataStream to QuicSpdyStream. No behavior change.

net/quic/test_tools/quic_spdy_stream_peer.cc

Index: net/quic/test_tools/quic_spdy_stream_peer.cc
diff --git a/net/quic/test_tools/quic_data_stream_peer.cc b/net/quic/test_tools/quic_spdy_stream_peer.cc
similarity index 71%
rename from net/quic/test_tools/quic_data_stream_peer.cc
rename to net/quic/test_tools/quic_spdy_stream_peer.cc
index 616567531049b08c359292a3594631af9060ee79..953f9111e70ea2eae264385c095d5cd22f02772d 100644
--- a/net/quic/test_tools/quic_data_stream_peer.cc
+++ b/net/quic/test_tools/quic_spdy_stream_peer.cc
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "net/quic/test_tools/quic_data_stream_peer.h"
+#include "net/quic/test_tools/quic_spdy_stream_peer.h"
 
-#include "net/quic/quic_data_stream.h"
+#include "net/quic/quic_spdy_stream.h"
 
 namespace net {
 namespace test {
 
 // static
-void QuicDataStreamPeer::SetHeadersDecompressed(QuicDataStream* stream,
+void QuicSpdyStreamPeer::SetHeadersDecompressed(QuicSpdyStream* stream,
                                                 bool headers_decompressed) {
   stream->headers_decompressed_ = headers_decompressed;
 }