Adding ThreadChecker validation to d'tors for protocol classes

remoting/protocol/channel_socket_adapter.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/channel_socket_adapter.h"
 
 #include <limits>
 
 #include "base/callback.h"
 #include "base/logging.h"
@@ skipping 10 matching lines @@
 
   channel_->SignalReadPacket.connect(
       this, &TransportChannelSocketAdapter::OnNewPacket);
   channel_->SignalWritableState.connect(
       this, &TransportChannelSocketAdapter::OnWritableState);
   channel_->SignalDestroyed.connect(
       this, &TransportChannelSocketAdapter::OnChannelDestroyed);
 }
 
 TransportChannelSocketAdapter::~TransportChannelSocketAdapter() {
+  DCHECK(thread_checker_.CalledOnValidThread());
   if (!destruction_callback_.is_null())
     destruction_callback_.Run();
 }
 
 void TransportChannelSocketAdapter::SetOnDestroyedCallback(
     const base::Closure& callback) {
   destruction_callback_ = callback;
 }
 
 int TransportChannelSocketAdapter::Recv(
@@ skipping 134 matching lines @@
 
 void TransportChannelSocketAdapter::OnChannelDestroyed(
     cricket::IceTransportInternal* channel) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK_EQ(channel, channel_);
   Close(net::ERR_CONNECTION_ABORTED);
 }
 
 }  // namespace protocol
 }  // namespace remoting