Deprecate NonThreadSafe in remoting in favor of SequenceChecker.

remoting/host/ipc_host_event_logger.h

 // Copyright (c) 2013 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_IPC_HOST_EVENT_LOGGER_H_
 #define REMOTING_HOST_IPC_HOST_EVENT_LOGGER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/sequence_checker.h"
 #include "remoting/host/host_event_logger.h"
 #include "remoting/host/host_status_observer.h"
 
 namespace IPC {
 class Sender;
 }  // namespace IPC
 
 namespace remoting {
 
 class HostStatusMonitor;
 
-class IpcHostEventLogger
-    : public base::NonThreadSafe,
-      public HostEventLogger,
-      public HostStatusObserver {
+class IpcHostEventLogger : public HostEventLogger, public HostStatusObserver {
  public:
   // Initializes the logger. |daemon_channel| must outlive this object.
   IpcHostEventLogger(base::WeakPtr<HostStatusMonitor> monitor,
                      IPC::Sender* daemon_channel);
   ~IpcHostEventLogger() override;
 
   // HostStatusObserver interface.
   void OnAccessDenied(const std::string& jid) override;
   void OnClientAuthenticated(const std::string& jid) override;
   void OnClientConnected(const std::string& jid) override;
   void OnClientDisconnected(const std::string& jid) override;
   void OnClientRouteChange(const std::string& jid,
                            const std::string& channel_name,
                            const protocol::TransportRoute& route) override;
   void OnStart(const std::string& xmpp_login) override;
   void OnShutdown() override;
 
  private:
   // Used to report host status events to the daemon.
   IPC::Sender* daemon_channel_;
 
   base::WeakPtr<HostStatusMonitor> monitor_;
 
+  SEQUENCE_CHECKER(sequence_checker_);
+
   DISALLOW_COPY_AND_ASSIGN(IpcHostEventLogger);
 };
 
 }
 
 #endif  // REMOTING_HOST_IPC_HOST_EVENT_LOGGER_H_