Switch remoting/protocol to new callbacks

remoting/protocol/pepper_session_manager.cc

 // 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.
 
 #include "remoting/protocol/pepper_session_manager.h"
 
 #include "base/bind.h"
 #include "remoting/jingle_glue/jingle_info_request.h"
 #include "remoting/jingle_glue/signal_strategy.h"
 #include "remoting/protocol/jingle_messages.h"
@@ skipping 60 matching lines @@
           << " Relay token: " << transport_config_.relay_token;
 
   listener_->OnSessionManagerInitialized();
 }
 
 Session* PepperSessionManager::Connect(
     const std::string& host_jid,
     const std::string& host_public_key,
     const std::string& client_token,
     CandidateSessionConfig* config,
-    Session::StateChangeCallback* state_change_callback) {
+    const Session::StateChangeCallback& state_change_callback) {
   PepperSession* session = new PepperSession(this);
   session->StartConnection(host_jid, host_public_key, client_token,
                            config, state_change_callback);
   sessions_[session->session_id_] = session;
   return session;
 }
 
 void PepperSessionManager::Close() {
   DCHECK(CalledOnValidThread());
 
@@ skipping 45 matching lines @@
   buzz::XmlElement* stanza = reply.ToXml(original_stanza);
   signal_strategy_->SendStanza(stanza);
 }
 
 void PepperSessionManager::SessionDestroyed(PepperSession* session) {
   sessions_.erase(session->session_id_);
 }
 
 }  // namespace protocol
 }  // namespace remoting