Replace deprecated base::NonThreadSafe in base in favor of SequenceChecker.

base/message_loop/message_pump.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 BASE_MESSAGE_LOOP_MESSAGE_PUMP_H_
 #define BASE_MESSAGE_LOOP_MESSAGE_PUMP_H_
 
 #include "base/base_export.h"
 #include "base/message_loop/timer_slack.h"
-#include "base/threading/non_thread_safe.h"
+#include "base/sequence_checker.h"
 
 namespace base {
 
 class TimeTicks;
 
-class BASE_EXPORT MessagePump : public NonThreadSafe {
+class BASE_EXPORT MessagePump {
  public:
   // Please see the comments above the Run method for an illustration of how
   // these delegate methods are used.
   class BASE_EXPORT Delegate {
    public:
     virtual ~Delegate() {}
 
     // Called from within Run in response to ScheduleWork or when the message
     // pump would otherwise call DoDelayedWork.  Returns true to indicate that
     // work was done.  DoDelayedWork will still be called if DoWork returns
@@ skipping 95 matching lines @@
   // used on the thread that called Run.
   virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time) = 0;
 
   // Sets the timer slack to the specified value.
   virtual void SetTimerSlack(TimerSlack timer_slack);
 };
 
 }  // namespace base
 
 #endif  // BASE_MESSAGE_LOOP_MESSAGE_PUMP_H_