Mojo: nuke EnvironmentData

mojo/common/environment_data.h

-// 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.
-
-#ifndef MOJO_COMMON_ENVIRONMENT_DATA_H_
-#define MOJO_COMMON_ENVIRONMENT_DATA_H_
-
-#include <map>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/synchronization/lock.h"
-#include "mojo/common/mojo_common_export.h"
-
-namespace mojo {
-namespace common {
-
-// EnvironmentData is used to store arbitrary key/value pairs in the
-// environment. The key/value pairs are owned by the Environment and deleted
-// when it is deleted.
-class MOJO_COMMON_EXPORT EnvironmentData {
- public:
-  class MOJO_COMMON_EXPORT Data {
-   public:
-    Data() {}
-    virtual ~Data() {}
-  };
-
-  EnvironmentData();
-  ~EnvironmentData();
-
-  static EnvironmentData* GetInstance();
-
-  void SetData(const void* key, scoped_ptr<Data> data);
-
-  Data* GetData(const void* key);
-
- private:
-  typedef std::map<const void*, Data*> DataMap;
-
-  static EnvironmentData* instance_;
-
-  base::Lock data_lock_;
-
-  DataMap data_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(EnvironmentData);
-};
-
-}  // namespace common
-}  // namespace mojo
-
-#endif  // MOJO_COMMON_ENVIRONMENT_DATA_H_