Deprecate NonThreadSafe in remoting in favor of SequenceChecker.

remoting/base/rate_counter.cc

 // Copyright (c) 2011 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.
 
 #include "remoting/base/rate_counter.h"
 
 #include "base/logging.h"
 
 namespace remoting {
 
 RateCounter::RateCounter(base::TimeDelta time_window)
     : time_window_(time_window), sum_(0) {
   DCHECK_GT(time_window, base::TimeDelta());
 }
 
-RateCounter::~RateCounter() {}
+RateCounter::~RateCounter() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
+}
 
 void RateCounter::Record(int64_t value) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   base::TimeTicks now = tick_clock_->NowTicks();
   EvictOldDataPoints(now);
   sum_ += value;
   data_points_.push(std::make_pair(now, value));
 }
 
 double RateCounter::Rate() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   EvictOldDataPoints(tick_clock_->NowTicks());
   return sum_ / time_window_.InSecondsF();
 }
 
 void RateCounter::EvictOldDataPoints(base::TimeTicks now) {
   // Remove data points outside of the window.
   base::TimeTicks window_start = now - time_window_;
 
   while (!data_points_.empty()) {
     if (data_points_.front().first > window_start)
       break;
 
     sum_ -= data_points_.front().second;
     data_points_.pop();
   }
 }
 
 }  // namespace remoting