Remove dependency on headers stream from QuicSession.

net/quic/reliable_quic_stream_test.cc

Index: net/quic/reliable_quic_stream_test.cc
diff --git a/net/quic/reliable_quic_stream_test.cc b/net/quic/reliable_quic_stream_test.cc
index acc256fc8525756000d9e5ec7eab9c10a875788b..2de7b9d5f47779451406b5a073545a9b6482b368 100644
--- a/net/quic/reliable_quic_stream_test.cc
+++ b/net/quic/reliable_quic_stream_test.cc
@@ -107,7 +107,7 @@ class ReliableQuicStreamTest : public ::testing::TestWithParam<bool> {
   void Initialize(bool stream_should_process_data) {
     connection_ = new StrictMock<MockConnection>(Perspective::IS_SERVER,
                                                  supported_versions_);
-    session_.reset(new StrictMock<MockSession>(connection_));
+    session_.reset(new StrictMock<MockQuicSpdySession>(connection_));
 
     // New streams rely on having the peer's flow control receive window
     // negotiated in the config.
@@ -134,7 +134,7 @@ class ReliableQuicStreamTest : public ::testing::TestWithParam<bool> {
 
  protected:
   MockConnection* connection_;
-  scoped_ptr<MockSession> session_;
+  scoped_ptr<MockQuicSpdySession> session_;
   scoped_ptr<TestStream> stream_;
   SpdyHeaderBlock headers_;
   QuicWriteBlockedList* write_blocked_list_;