Deprecate NonThreadSafe in remoting in favor of SequenceChecker.

remoting/host/win/wts_session_process_delegate.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_HOST_WIN_WTS_SESSION_PROCESS_DELEGATE_H_
 #define REMOTING_HOST_WIN_WTS_SESSION_PROCESS_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/sequence_checker.h"
 #include "remoting/host/win/worker_process_launcher.h"
 
 namespace base {
 class CommandLine;
 class SingleThreadTaskRunner;
 } // namespace base
 
 namespace IPC {
 class Message;
 } // namespace base
 
 namespace remoting {
 
 // Implements logic for launching and monitoring a worker process in a different
 // session.
-class WtsSessionProcessDelegate
-    : public base::NonThreadSafe,
-      public WorkerProcessLauncher::Delegate {
+class WtsSessionProcessDelegate : public WorkerProcessLauncher::Delegate {
  public:
   WtsSessionProcessDelegate(
       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
       std::unique_ptr<base::CommandLine> target,
       bool launch_elevated,
       const std::string& channel_security);
   ~WtsSessionProcessDelegate() override;
 
   // Initializes the object returning true on success.
   bool Initialize(uint32_t session_id);
 
   // WorkerProcessLauncher::Delegate implementation.
   void LaunchProcess(WorkerProcessLauncher* event_handler) override;
   void Send(IPC::Message* message) override;
   void CloseChannel() override;
   void KillProcess() override;
 
  private:
   // The actual implementation resides in WtsSessionProcessDelegate::Core class.
   class Core;
   scoped_refptr<Core> core_;
 
+  SEQUENCE_CHECKER(sequence_checker_);
+
   DISALLOW_COPY_AND_ASSIGN(WtsSessionProcessDelegate);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_WIN_WTS_SESSION_PROCESS_DELEGATE_H_