Refactoring: Create per-connection packet writers in QuicDispatcher.

net/quic/quic_server_session.h

 // Copyright 2014 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.
 //
 // A server specific QuicSession subclass.
 
 #ifndef NET_QUIC_QUIC_SERVER_SESSION_H_
 #define NET_QUIC_QUIC_SERVER_SESSION_H_
 
 #include <set>
@@ skipping 26 matching lines @@
  public:
   virtual ~QuicServerSessionVisitor() {}
 
   virtual void OnConnectionClosed(QuicConnectionId connection_id,
                                   QuicErrorCode error) = 0;
   virtual void OnWriteBlocked(QuicBlockedWriterInterface* blocked_writer) = 0;
 };
 
 class QuicServerSession : public QuicSession {
  public:
-  // Takes ownership of connection_packet_writer
   QuicServerSession(const QuicConfig& config,
                     QuicConnection* connection,
-                    QuicPerConnectionPacketWriter* connection_packet_writer,
                     QuicServerSessionVisitor* visitor);
 
   // Override the base class to notify the owner of the connection close.
   virtual void OnConnectionClosed(QuicErrorCode error, bool from_peer) OVERRIDE;
   virtual void OnWriteBlocked() OVERRIDE;
 
   virtual ~QuicServerSession();
 
   virtual void InitializeSession(const QuicCryptoServerConfig& crypto_config);
 
@@ skipping 15 matching lines @@
   // possibly closing the connection, and returns false.
   virtual bool ShouldCreateIncomingDataStream(QuicStreamId id);
 
   virtual QuicCryptoServerStream* CreateQuicCryptoServerStream(
       const QuicCryptoServerConfig& crypto_config);
 
  private:
   friend class test::QuicServerSessionPeer;
 
   scoped_ptr<QuicCryptoServerStream> crypto_stream_;
-  scoped_ptr<QuicPerConnectionPacketWriter> connection_packet_writer_;
   QuicServerSessionVisitor* visitor_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicServerSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_SERVER_SESSION_H_