Add P2PDatagramSocket and P2PStreamSocket interfaces.

remoting/protocol/channel_authenticator.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.
 
 #ifndef REMOTING_PROTOCOL_CHANNEL_AUTHENTICATOR_H_
 #define REMOTING_PROTOCOL_CHANNEL_AUTHENTICATOR_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
 
-namespace net {
-class StreamSocket;
-}  // namespace net
-
 namespace remoting {
 namespace protocol {
 
+class P2PStreamSocket;
+
 // Interface for channel authentications that perform channel-level
 // authentication. Depending on implementation channel authenticators
 // may also establish SSL connection. Each instance of this interface
 // should be used only once for one channel.
 class ChannelAuthenticator {
  public:
-  typedef base::Callback<void(int error, scoped_ptr<net::StreamSocket>)>
+  typedef base::Callback<void(int error, scoped_ptr<P2PStreamSocket>)>
       DoneCallback;
 
   virtual ~ChannelAuthenticator() {}
 
   // Start authentication of the given |socket|. |done_callback| is called when
   // authentication is finished. Callback may be invoked before this method
   // returns, and may delete the calling authenticator.
   virtual void SecureAndAuthenticate(
-      scoped_ptr<net::StreamSocket> socket,
+      scoped_ptr<P2PStreamSocket> socket,
       const DoneCallback& done_callback) = 0;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_CHANNEL_AUTHENTICATOR_H_