Adding ThreadChecker validation to d'tors for protocol classes

remoting/protocol/video_frame_pump.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/video_frame_pump.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
@@ skipping 48 matching lines @@
                                     base::Unretained(this))),
       weak_factory_(this) {
   DCHECK(encoder_);
   DCHECK(video_stub_);
 
   capturer_->Start(this);
   capture_scheduler_.Start();
 }
 
 VideoFramePump::~VideoFramePump() {
+  DCHECK(thread_checker_.CalledOnValidThread());
   encode_task_runner_->DeleteSoon(FROM_HERE, encoder_.release());
 }
 
 void VideoFramePump::SetEventTimestampsSource(
     scoped_refptr<InputEventTimestampsSource> event_timestamps_source) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   event_timestamps_source_ = event_timestamps_source;
 }
 
@@ skipping 176 matching lines @@
 }
 
 void VideoFramePump::OnKeepAlivePacketSent() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   keep_alive_timer_.Reset();
 }
 
 }  // namespace protocol
 }  // namespace remoting