Adding ThreadChecker validation to d'tors for protocol classes

remoting/protocol/capture_scheduler.cc

 // Copyright 2015 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/protocol/capture_scheduler.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/logging.h"
@@ skipping 43 matching lines @@
       encode_time_(kStatisticsWindow),
       num_encoding_frames_(0),
       num_unacknowledged_frames_(0),
       capture_pending_(false),
       is_paused_(false),
       next_frame_id_(0) {
   DCHECK(num_of_processors_);
 }
 
 CaptureScheduler::~CaptureScheduler() {
+  DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 void CaptureScheduler::Start() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   ScheduleNextCapture();
 }
 
 void CaptureScheduler::Pause(bool pause) {
   DCHECK(thread_checker_.CalledOnValidThread());
@@ skipping 101 matching lines @@
   DCHECK(!is_paused_);
   DCHECK(!capture_pending_);
 
   capture_pending_ = true;
   last_capture_started_time_ = tick_clock_->NowTicks();
   capture_closure_.Run();
 }
 
 }  // namespace protocol
 }  // namespace remoting