Mojo: nuke EnvironmentData

mojo/common/environment_data.cc

-// Copyright 2014 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 "mojo/common/environment_data.h"
-
-#include "base/stl_util.h"
-
-namespace mojo {
-namespace common {
-
-// static
-EnvironmentData* EnvironmentData::instance_ = NULL;
-
-EnvironmentData::EnvironmentData() {
-  DCHECK(!instance_);
-  instance_ = this;
-}
-
-EnvironmentData::~EnvironmentData() {
-  instance_ = NULL;
-  DataMap data_map;
-  data_map.swap(data_map_);
-  STLDeleteContainerPairSecondPointers(data_map.begin(), data_map.end());
-}
-
-// static
-EnvironmentData* EnvironmentData::GetInstance() {
-  return instance_;
-}
-
-void EnvironmentData::SetData(const void* key, scoped_ptr<Data> data) {
-  Data* old = NULL;
-  {
-    base::AutoLock auto_lock(data_lock_);
-    old = data_map_[key];
-    if (data)
-      data_map_[key] = data.release();
-    else
-      data_map_.erase(key);
-  }
-  delete old;
-}
-
-EnvironmentData::Data* EnvironmentData::GetData(const void* key) {
-  base::AutoLock auto_lock(data_lock_);
-  return data_map_.count(key) > 0 ? data_map_[key] : NULL;
-}
-
-}  // namespace common
-}  // namespace mojo