Revert of [Chromoting] Add DataChannelManager to manage optional incoming data channels

remoting/protocol/named_message_pipe_handler.cc

-// Copyright 2017 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/named_message_pipe_handler.h"
-
-#include <utility>
-
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "remoting/base/compound_buffer.h"
-
-namespace remoting {
-namespace protocol {
-
-NamedMessagePipeHandler::NamedMessagePipeHandler(
-    const std::string& name,
-    std::unique_ptr<MessagePipe> pipe)
-    : name_(name),
-      pipe_(std::move(pipe)) {
-  DCHECK(pipe_);
-  pipe_->Start(this);
-}
-
-NamedMessagePipeHandler::~NamedMessagePipeHandler() = default;
-
-void NamedMessagePipeHandler::Close() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  if (connected()) {
-    OnDisconnecting();
-    is_connected_ = false;
-  }
-  delete this;
-}
-
-void NamedMessagePipeHandler::Send(google::protobuf::MessageLite* message,
-                              const base::Closure& done) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(connected());
-  pipe_->Send(message, done);
-}
-
-void NamedMessagePipeHandler::OnIncomingMessage(
-    std::unique_ptr<CompoundBuffer> message) {}
-
-void NamedMessagePipeHandler::OnConnected() {}
-
-void NamedMessagePipeHandler::OnDisconnecting() {}
-
-void NamedMessagePipeHandler::OnMessagePipeOpen() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(!is_connected_);
-  is_connected_ = true;
-  OnConnected();
-}
-
-void NamedMessagePipeHandler::OnMessageReceived(
-    std::unique_ptr<CompoundBuffer> message) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  OnIncomingMessage(std::move(message));
-}
-
-void NamedMessagePipeHandler::OnMessagePipeClosed() {
-  Close();
-}
-
-}  // namespace protocol
-}  // namespace remoting