Refactor QuicClientSession so that it owns the underlying socket

net/quic/quic_client_session.h

 // Copyright (c) 2012 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 client specific QuicSession subclass.  This class owns the underlying
 // QuicConnection and QuicConnectionHelper objects.  The connection stores
 // a non-owning pointer to the helper so this session needs to ensure that
 // the helper outlives the connection.
 
 #ifndef NET_QUIC_QUIC_CLIENT_SESSION_H_
 #define NET_QUIC_QUIC_CLIENT_SESSION_H_
 
 #include <string>
 
 #include "base/hash_tables.h"
 #include "net/base/completion_callback.h"
 #include "net/quic/quic_connection_logger.h"
 #include "net/quic/quic_crypto_client_stream.h"
 #include "net/quic/quic_reliable_client_stream.h"
 #include "net/quic/quic_session.h"
 
 namespace net {
 
+class DatagramClientSocket;
 class QuicConnectionHelper;
 class QuicStreamFactory;
 
 class NET_EXPORT_PRIVATE QuicClientSession : public QuicSession {
  public:
   // Constructs a new session which will own |connection| and |helper|, but
   // not |stream_factory|, which must outlive this session.
   // TODO(rch): decouple the factory from the session via a Delegate interface.
   QuicClientSession(QuicConnection* connection,
-                    QuicConnectionHelper* helper,
+                    DatagramClientSocket* socket,
                     QuicStreamFactory* stream_factory,
                     const std::string& server_hostname,
                     NetLog* net_log);
 
   virtual ~QuicClientSession();
 
   // QuicSession methods:
   virtual QuicReliableClientStream* CreateOutgoingReliableStream() OVERRIDE;
   virtual QuicCryptoClientStream* GetCryptoStream() OVERRIDE;
   virtual void CloseStream(QuicStreamId stream_id) OVERRIDE;
@@ skipping 17 matching lines @@
   // QuicSession methods:
   virtual ReliableQuicStream* CreateIncomingReliableStream(
       QuicStreamId id) OVERRIDE;
 
  private:
   // A completion callback invoked when a read completes.
   void OnReadComplete(int result);
 
   base::WeakPtrFactory<QuicClientSession> weak_factory_;
   QuicCryptoClientStream crypto_stream_;
-  scoped_ptr<QuicConnectionHelper> helper_;
   QuicStreamFactory* stream_factory_;
+  scoped_ptr<DatagramClientSocket> socket_;
   scoped_refptr<IOBufferWithSize> read_buffer_;
   bool read_pending_;
   CompletionCallback callback_;
   size_t num_total_streams_;
   BoundNetLog net_log_;
   QuicConnectionLogger logger_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicClientSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CLIENT_SESSION_H_