Content Modularization Project: Move Wake Lock to //device

content/browser/wake_lock/wake_lock_service_context.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_CONTEXT_H_
-#define CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_CONTEXT_H_
-
-#include <memory>
-#include <set>
-#include <utility>
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/sequenced_task_runner.h"
-#include "content/browser/wake_lock/wake_lock_service_impl.h"
-#include "content/common/content_export.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace device {
-class PowerSaveBlocker;
-}  // namespace device
-
-namespace content {
-
-class CONTENT_EXPORT WakeLockServiceContext {
- public:
-  WakeLockServiceContext(
-      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
-      base::Callback<gfx::NativeView()> native_view_getter);
-  ~WakeLockServiceContext();
-
-  // Creates a WakeLockServiceImpl that is strongly bound to |request|.
-  void CreateService(
-      mojo::InterfaceRequest<blink::mojom::WakeLockService> request);
-
-  // Requests wake lock.
-  void RequestWakeLock();
-
-  // Cancels pending wake lock request.
-  void CancelWakeLock();
-
-  // Used by tests.
-  bool HasWakeLockForTests() const;
-
- private:
-  void CreateWakeLock();
-  void RemoveWakeLock();
-  void UpdateWakeLock();
-
-  scoped_refptr<base::SequencedTaskRunner> main_task_runner_;
-  scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
-
-  int num_lock_requests_;
-
-  // The actual power save blocker for screen.
-  std::unique_ptr<device::PowerSaveBlocker> wake_lock_;
-  base::Callback<gfx::NativeView()> native_view_getter_;
-
-  base::WeakPtrFactory<WakeLockServiceContext> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(WakeLockServiceContext);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_CONTEXT_H_