Simplify channel creation callbacks in remoting::Session interface.

remoting/protocol/session.h

 // Copyright (c) 2011 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_SESSION_H_
 #define REMOTING_PROTOCOL_SESSION_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 18 matching lines @@
  public:
   enum State {
     INITIALIZING,
     CONNECTING,
     CONNECTED,
     CLOSED,
     FAILED,
   };
 
   typedef Callback1<State>::Type StateChangeCallback;
-  typedef base::Callback<void(const std::string&, net::StreamSocket*)>
-      StreamChannelCallback;
-  typedef base::Callback<void(const std::string&, net::Socket*)>
-      DatagramChannelCallback;
+  typedef base::Callback<void(net::StreamSocket*)> StreamChannelCallback;
+  typedef base::Callback<void(net::Socket*)> DatagramChannelCallback;
 
   Session() { }
   virtual ~Session() { }
 
   // Set callback that is called when state of the connection is changed.
   // Must be called on the jingle thread only.
   virtual void SetStateChangeCallback(StateChangeCallback* callback) = 0;
 
   // Creates new channels for this connection. The specified callback
   // is called when then new channel is created and connected. The
@@ skipping 46 matching lines @@
   virtual void Close() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Session);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_SESSION_H_