Remove Mojo bindings environment.

mojo/public/cpp/environment/environment.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_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_
-#define MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_
-
-#include "base/macros.h"
-
-struct MojoAsyncWaiter;
-struct MojoLogger;
-
-namespace mojo {
-
-struct TaskTracker;
-
-// Other parts of the Mojo C++ APIs use the *static* methods of this class.
-//
-// The "standalone" implementation of this class requires that this class (in
-// the lib/ subdirectory) be instantiated (and remain so) while using the Mojo
-// C++ APIs. I.e., the static methods depend on things set up by the constructor
-// and torn down by the destructor.
-//
-// Other implementations may not have this requirement.
-class Environment {
- public:
-  Environment();
-  // This constructor allows the standard implementations to be overridden (set
-  // a parameter to null to get the standard implementation).
-  Environment(const MojoAsyncWaiter* default_async_waiter,
-              const MojoLogger* default_logger,
-              const TaskTracker* default_task_tracker);
-  ~Environment();
-
-  static const MojoAsyncWaiter* GetDefaultAsyncWaiter();
-  static const MojoLogger* GetDefaultLogger();
-  static const TaskTracker* GetDefaultTaskTracker();
-
-  // These instantiate and destroy an environment-specific run loop for the
-  // current thread, allowing |GetDefaultAsyncWaiter()| to be used. (The run
-  // loop itself should be accessible via thread-local storage, using methods
-  // specific to the run loop implementation.) Creating and destroying nested
-  // run loops is not supported.
-  static void InstantiateDefaultRunLoop();
-  static void DestroyDefaultRunLoop();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(Environment);
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_PUBLIC_CPP_ENVIRONMENT_ENVIRONMENT_H_