[Chromoting] Add SessionPlugin in JingleSession

remoting/protocol/fake_session.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_FAKE_SESSION_H_
 #define REMOTING_PROTOCOL_FAKE_SESSION_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 29 matching lines @@
     signaling_delay_ = signaling_delay;
   }
 
   // Session interface.
   void SetEventHandler(EventHandler* event_handler) override;
   ErrorCode error() override;
   const std::string& jid() override;
   const SessionConfig& config() override;
   void SetTransport(Transport* transport) override;
   void Close(ErrorCode error) override;
+  void Attach(std::unique_ptr<SessionPlugin> plugin) override;
 
  private:
   // Callback provided to the |transport_|.
   void SendTransportInfo(std::unique_ptr<buzz::XmlElement> transport_info);
 
   // Called by the |peer_| to deliver incoming |transport_info|.
   void ProcessTransportInfo(std::unique_ptr<buzz::XmlElement> transport_info);
 
   EventHandler* event_handler_ = nullptr;
   std::unique_ptr<SessionConfig> config_;
@@ skipping 11 matching lines @@
 
   base::WeakPtrFactory<FakeSession> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeSession);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_FAKE_SESSION_H_