Revert of Build services as standalone executables

services/service_manager/public/cpp/standalone_service/mach_broker.cc

-// Copyright 2016 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 "services/service_manager/public/cpp/standalone_service/mach_broker.h"
-
-#include "base/logging.h"
-#include "base/memory/singleton.h"
-
-namespace service_manager {
-
-namespace {
-const char kBootstrapPortName[] = "mojo_service_manager";
-}
-
-// static
-void MachBroker::SendTaskPortToParent() {
-  bool result = base::MachPortBroker::ChildSendTaskPortToParent(
-      kBootstrapPortName);
-  DCHECK(result);
-}
-
-// static
-MachBroker* MachBroker::GetInstance() {
-  return base::Singleton<MachBroker>::get();
-}
-
-MachBroker::MachBroker() : broker_(kBootstrapPortName) {
-  bool result = broker_.Init();
-  DCHECK(result);
-}
-
-MachBroker::~MachBroker() {}
-
-void MachBroker::ExpectPid(base::ProcessHandle pid) {
-  broker_.AddPlaceholderForPid(pid);
-}
-
-void MachBroker::RemovePid(base::ProcessHandle pid) {
-  broker_.InvalidatePid(pid);
-}
-
-}  // namespace service_manager