Add CancelChannelCreation() in protocol::Session interface.

remoting/protocol/pepper_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_PEPPER_SESSION_H_
 #define REMOTING_PROTOCOL_PEPPER_SESSION_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 30 matching lines @@
   // Session interface.
   virtual void SetStateChangeCallback(
       const StateChangeCallback& callback) OVERRIDE;
   virtual Error error() OVERRIDE;
   virtual void CreateStreamChannel(
       const std::string& name,
       const StreamChannelCallback& callback) OVERRIDE;
   virtual void CreateDatagramChannel(
       const std::string& name,
       const DatagramChannelCallback& callback) OVERRIDE;
+  virtual void CancelChannelCreation(const std::string& name) OVERRIDE;
   virtual net::Socket* control_channel() OVERRIDE;
   virtual net::Socket* event_channel() OVERRIDE;
   virtual const std::string& jid() OVERRIDE;
   virtual const CandidateSessionConfig* candidate_config() OVERRIDE;
   virtual const SessionConfig& config() OVERRIDE;
   virtual void set_config(const SessionConfig& config) OVERRIDE;
   virtual const std::string& initiator_token() OVERRIDE;
   virtual void set_initiator_token(const std::string& initiator_token) OVERRIDE;
   virtual const std::string& receiver_token() OVERRIDE;
   virtual void set_receiver_token(const std::string& receiver_token) OVERRIDE;
@@ skipping 82 matching lines @@
   base::OneShotTimer<PepperSession> transport_infos_timer_;
   std::list<cricket::Candidate> pending_candidates_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperSession);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PEPPER_SESSION_H_