Rename QuicDataStream to QuicSpdyStream. No behavior change.

net/quic/quic_spdy_session.cc

Index: net/quic/quic_spdy_session.cc
diff --git a/net/quic/quic_spdy_session.cc b/net/quic/quic_spdy_session.cc
index 32d40687af891ef9f9d48b31c98fe68a153066f0..d29a926cff7d260235b55ec36be96fbfa5a3e8d2 100644
--- a/net/quic/quic_spdy_session.cc
+++ b/net/quic/quic_spdy_session.cc
@@ -33,7 +33,7 @@ void QuicSpdySession::Initialize() {
 
 void QuicSpdySession::OnStreamHeaders(QuicStreamId stream_id,
                                       StringPiece headers_data) {
-  QuicDataStream* stream = GetSpdyDataStream(stream_id);
+  QuicSpdyStream* stream = GetSpdyDataStream(stream_id);
   if (!stream) {
     // It's quite possible to receive headers after a stream has been reset.
     return;
@@ -43,7 +43,7 @@ void QuicSpdySession::OnStreamHeaders(QuicStreamId stream_id,
 
 void QuicSpdySession::OnStreamHeadersPriority(QuicStreamId stream_id,
                                               QuicPriority priority) {
-  QuicDataStream* stream = GetSpdyDataStream(stream_id);
+  QuicSpdyStream* stream = GetSpdyDataStream(stream_id);
   if (!stream) {
     // It's quite possible to receive headers after a stream has been reset.
     return;
@@ -54,7 +54,7 @@ void QuicSpdySession::OnStreamHeadersPriority(QuicStreamId stream_id,
 void QuicSpdySession::OnStreamHeadersComplete(QuicStreamId stream_id,
                                               bool fin,
                                               size_t frame_len) {
-  QuicDataStream* stream = GetSpdyDataStream(stream_id);
+  QuicSpdyStream* stream = GetSpdyDataStream(stream_id);
   if (!stream) {
     // It's quite possible to receive headers after a stream has been reset.
     return;
@@ -72,9 +72,9 @@ size_t QuicSpdySession::WriteHeaders(
                                        ack_notifier_delegate);
 }
 
-QuicDataStream* QuicSpdySession::GetSpdyDataStream(
+QuicSpdyStream* QuicSpdySession::GetSpdyDataStream(
     const QuicStreamId stream_id) {
-  return static_cast<QuicDataStream*>(GetDynamicStream(stream_id));
+  return static_cast<QuicSpdyStream*>(GetDynamicStream(stream_id));
 }
 
 }  // namespace net