Revert 34146 - A place to store the pid>mach_port_t mapping....

chrome/browser/mach_broker_mac.cc

-// Copyright (c) 2009 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 "chrome/browser/mach_broker_mac.h"
-
-#include "base/logging.h"
-
-// Constructor.
-MachBroker::MachBroker() {}
-
-// Returns the global MachBroker.
-MachBroker* MachBroker::instance() {
-  return Singleton<MachBroker>::get();
-}
-
-// Returns the mach task belonging to |pid|.
-mach_port_t MachBroker::MachTaskForPid(base::ProcessHandle pid) const {
-  AutoLock lock(lock_);
-  MachBroker::MachMap::const_iterator it = mach_map_.find(pid);
-  if (it == mach_map_.end())
-    return 0;
-  return it->second.mach_task_;
-}
-
-// Returns the mach host belonging to |pid|.
-mach_port_t MachBroker::MachHostForPid(base::ProcessHandle pid) const {
-  AutoLock lock(lock_);
-  MachMap::const_iterator it = mach_map_.find(pid);
-  if (it == mach_map_.end())
-    return 0;
-  return it->second.mach_host_;
-}
-
-// Adds mach info for a given pid.
-void MachBroker::RegisterPid(
-    base::ProcessHandle pid, const MachInfo& mach_info) {
-  AutoLock lock(lock_);
-  DCHECK(mach_map_.count(pid) == 0);
-  mach_map_[pid] = mach_info;
-}
-
-// Removes all mappings belonging to |pid| from the broker.
-void MachBroker::Invalidate(base::ProcessHandle pid) {
-  AutoLock lock(lock_);
-  mach_map_.erase(pid);
-}