Add P2PDatagramSocket and P2PStreamSocket interfaces.

remoting/protocol/pseudotcp_channel_factory.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.
 
 #ifndef REMOTING_PROTOCOL_PSEUDOTCP_CHANNEL_FACTORY_H_
 #define REMOTING_PROTOCOL_PSEUDOTCP_CHANNEL_FACTORY_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "remoting/protocol/stream_channel_factory.h"
 
 namespace remoting {
 namespace protocol {
 
 class DatagramChannelFactory;
+class P2PDatagramSocket;
 
 // StreamChannelFactory that creates PseudoTCP-based stream channels that run on
 // top of datagram channels created using specified |datagram_channel_factory|.
 class PseudoTcpChannelFactory : public StreamChannelFactory {
  public:
   // |datagram_channel_factory| must outlive this object.
   explicit PseudoTcpChannelFactory(
       DatagramChannelFactory* datagram_channel_factory);
   ~PseudoTcpChannelFactory() override;
 
   // StreamChannelFactory interface.
   void CreateChannel(const std::string& name,
                      const ChannelCreatedCallback& callback) override;
   void CancelChannelCreation(const std::string& name) override;
 
  private:
-  typedef std::map<std::string, net::StreamSocket*> PendingSocketsMap;
+  typedef std::map<std::string, P2PStreamSocket*> PendingSocketsMap;
 
   void OnDatagramChannelCreated(const std::string& name,
                                 const ChannelCreatedCallback& callback,
-                                scoped_ptr<net::Socket> socket);
+                                scoped_ptr<P2PDatagramSocket> socket);
   void OnPseudoTcpConnected(const std::string& name,
                             const ChannelCreatedCallback& callback,
                             int result);
 
   DatagramChannelFactory* datagram_channel_factory_;
 
   PendingSocketsMap pending_sockets_;
 
   DISALLOW_COPY_AND_ASSIGN(PseudoTcpChannelFactory);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PSEUDOTCP_CHANNEL_FACTORY_H_