[Chromoting] Use HostExperimentSessionPlugin in host

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>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "remoting/protocol/fake_stream_socket.h"
+#include "remoting/protocol/jingle_messages.h"
 #include "remoting/protocol/session.h"
 #include "remoting/protocol/transport.h"
 
 namespace remoting {
 namespace protocol {
 
 extern const char kTestJid[];
 
 class FakeAuthenticator;
 
 class FakeSession : public Session {
  public:
   FakeSession();
   ~FakeSession() override;
 
   void SimulateConnection(FakeSession* peer);
 
   EventHandler* event_handler() { return event_handler_; }
   void set_error(ErrorCode error) { error_ = error; }
   bool is_closed() const { return closed_; }
 
   // Sets delay for signaling message deliver when connected to a peer.
   void set_signaling_delay(base::TimeDelta signaling_delay) {
     signaling_delay_ = signaling_delay;
   }
 
+  // Adds an |attachment| to |round|, which will be sent to plugins added by
+  // AddPlugin() function.
+  void SetAttachment(size_t round,
+                     std::unique_ptr<buzz::XmlElement> attachment);
+
   // 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 AddPlugin(SessionPlugin* plugin) override;
 
  private:
@@ skipping 10 matching lines @@
 
   std::unique_ptr<FakeAuthenticator> authenticator_;
   Transport* transport_;
 
   ErrorCode error_ = OK;
   bool closed_ = false;
 
   base::WeakPtr<FakeSession> peer_;
   base::TimeDelta signaling_delay_;
 
+  std::vector<std::unique_ptr<buzz::XmlElement>> attachments_;
+
   base::WeakPtrFactory<FakeSession> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeSession);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_FAKE_SESSION_H_