Revert of Wake Lock API implementation (Chromium part)

content/browser/wake_lock/wake_lock_service_impl.h

-// Copyright 2015 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 CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_
-#define CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_
-
-#include "base/memory/weak_ptr.h"
-#include "content/common/wake_lock_service.mojom.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
-
-namespace content {
-
-class WakeLockServiceContext;
-
-class WakeLockServiceImpl: public WakeLockService {
- public:
-  WakeLockServiceImpl(base::WeakPtr<WakeLockServiceContext> context,
-                      int frame_id,
-                      mojo::InterfaceRequest<WakeLockService> request);
-  ~WakeLockServiceImpl() override;
-
-  // WakeLockSevice implementation.
-  void RequestWakeLock() override;
-  void CancelWakeLock() override;
-
- private:
-  base::WeakPtr<WakeLockServiceContext> context_;
-  const int frame_id_;
-  mojo::StrongBinding<WakeLockService> binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(WakeLockServiceImpl);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_