Update GnubbyAuthHandler to use the current session ID

remoting/host/security_key/fake_ipc_gnubby_auth_handler.h

 // Copyright 2016 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_HOST_SECURITY_KEY_FAKE_IPC_GNUBBY_AUTH_HANDLER_H_
 #define REMOTING_HOST_SECURITY_KEY_FAKE_IPC_GNUBBY_AUTH_HANDLER_H_
 
 #include "remoting/host/security_key/gnubby_auth_handler.h"
 
 #include <memory>
@@ skipping 17 matching lines @@
   FakeIpcGnubbyAuthHandler();
   ~FakeIpcGnubbyAuthHandler() override;
 
   // GnubbyAuthHandler interface.
   void CreateGnubbyConnection() override;
   bool IsValidConnectionId(int gnubby_connection_id) const override;
   void SendClientResponse(int gnubby_connection_id,
                           const std::string& response) override;
   void SendErrorAndCloseConnection(int gnubby_connection_id) override;
   void SetSendMessageCallback(const SendMessageCallback& callback) override;
+  void SetSessionIdCallback(const SessionIdCallback& callback) override;
   size_t GetActiveConnectionCountForTest() const override;
   void SetRequestTimeoutForTest(base::TimeDelta timeout) override;
 
   void set_ipc_security_key_channel_name(
       const std::string& ipc_security_key_channel_name) {
     ipc_security_key_channel_name_ = ipc_security_key_channel_name;
   }
 
   void set_ipc_server_channel_name(const std::string& ipc_server_channel_name) {
     ipc_server_channel_name_ = ipc_server_channel_name;
@@ skipping 15 matching lines @@
   // IPC Clients connect to this channel first to receive their own unique IPC
   // channel to start a security key forwarding session on.
   std::unique_ptr<IPC::Channel> ipc_server_channel_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeIpcGnubbyAuthHandler);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_SECURITY_KEY_FAKE_IPC_GNUBBY_AUTH_HANDLER_H_