Remove dependency on headers stream from QuicSession.

net/quic/quic_headers_stream.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_QUIC_HEADERS_STREAM_H_
 #define NET_QUIC_QUIC_HEADERS_STREAM_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/net_export.h"
 #include "net/quic/quic_protocol.h"
 #include "net/quic/reliable_quic_stream.h"
 #include "net/spdy/spdy_framer.h"
 
 namespace net {
 
+class QuicSpdySession;
+
 // Headers in QUIC are sent as SPDY SYN_STREAM or SYN_REPLY frames
 // over a reserved reliable stream with the id 2.  Each endpoint (client
 // and server) will allocate an instance of QuicHeadersStream to send
 // and receive headers.
 class NET_EXPORT_PRIVATE QuicHeadersStream : public ReliableQuicStream {
  public:
-  explicit QuicHeadersStream(QuicSession* session);
+  explicit QuicHeadersStream(QuicSpdySession* session);
   ~QuicHeadersStream() override;
 
   // Writes |headers| for |stream_id| in a SYN_STREAM or SYN_REPLY
   // frame to the peer.  If |fin| is true, the fin flag will be set on
   // the SPDY frame.  Returns the size, in bytes, of the resulting
   // SPDY frame.
   size_t WriteHeaders(
       QuicStreamId stream_id,
       const SpdyHeaderBlock& headers,
       bool fin,
@@ skipping 26 matching lines @@
   void OnControlFrameHeaderData(SpdyStreamId stream_id,
                                 const char* header_data,
                                 size_t len);
 
   // Called when the size of the compressed frame payload is available.
   void OnCompressedFrameSize(size_t frame_len);
 
   // Returns true if the session is still connected.
   bool IsConnected();
 
+  QuicSpdySession* spdy_session_;
+
   // Data about the stream whose headers are being processed.
   QuicStreamId stream_id_;
   bool fin_;
   size_t frame_len_;
 
   SpdyFramer spdy_framer_;
   scoped_ptr<SpdyFramerVisitor> spdy_framer_visitor_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicHeadersStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_HEADERS_STREAM_H_