Switch remoting/protocol to new callbacks

remoting/protocol/pepper_session_manager.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_PEPPER_SESSION_MANAGER_H_
 #define REMOTING_PROTOCOL_PEPPER_SESSION_MANAGER_H_
 
 #include <map>
 #include <list>
 #include <string>
@@ skipping 40 matching lines @@
                     SignalStrategy* signal_strategy,
                     SessionManager::Listener* listener,
                     crypto::RSAPrivateKey* private_key,
                     const std::string& certificate,
                     bool allow_nat_traversal) OVERRIDE;
   virtual Session* Connect(
       const std::string& host_jid,
       const std::string& host_public_key,
       const std::string& client_token,
       CandidateSessionConfig* config,
-      Session::StateChangeCallback* state_change_callback) OVERRIDE;
+      const Session::StateChangeCallback& state_change_callback) OVERRIDE;
   virtual void Close() OVERRIDE;
 
   // SignalStrategy::Listener interface.
   virtual bool OnIncomingStanza(const buzz::XmlElement* stanza) OVERRIDE;
 
  private:
   friend class PepperSession;
 
   typedef std::map<std::string, PepperSession*> SessionsMap;
 
@@ skipping 24 matching lines @@
 
   SessionsMap sessions_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperSessionManager);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PEPPER_SESSION_MANAGER_H_