Move //device/generic_sensor to be part of the internal implementation of the Device Service.

device/generic_sensor/platform_sensor_reader_win.h

-// Copyright 2016 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 DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_READER_WIN_H_
-#define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_READER_WIN_H_
-
-#include <SensorsApi.h>
-
-#include "base/win/scoped_comptr.h"
-#include "device/generic_sensor/public/interfaces/sensor.mojom.h"
-
-namespace device {
-
-class PlatformSensorConfiguration;
-struct ReaderInitParams;
-struct SensorReading;
-
-// Generic class that uses ISensor interface to fetch sensor data. Used
-// by PlatformSensorWin and delivers notifications via Client interface.
-// Instances of this class must be created and destructed on the same thread.
-class PlatformSensorReaderWin {
- public:
-  // Client interface that can be used to receive notifications about sensor
-  // error or data change events.
-  class Client {
-   public:
-    virtual void OnReadingUpdated(const SensorReading& reading) = 0;
-    virtual void OnSensorError() = 0;
-
-   protected:
-    virtual ~Client() {}
-  };
-
-  static std::unique_ptr<PlatformSensorReaderWin> Create(
-      mojom::SensorType type,
-      base::win::ScopedComPtr<ISensorManager> sensor_manager);
-
-  // Following methods are thread safe.
-  void SetClient(Client* client);
-  unsigned long GetMinimalReportingIntervalMs() const;
-  bool StartSensor(const PlatformSensorConfiguration& configuration);
-  void StopSensor();
-
-  // Must be destructed on the same thread that was used during construction.
-  ~PlatformSensorReaderWin();
-
- private:
-  PlatformSensorReaderWin(base::win::ScopedComPtr<ISensor> sensor,
-                          std::unique_ptr<ReaderInitParams> params);
-
-  static base::win::ScopedComPtr<ISensor> GetSensorForType(
-      REFSENSOR_TYPE_ID sensor_type,
-      base::win::ScopedComPtr<ISensorManager> sensor_manager);
-
-  bool SetReportingInterval(const PlatformSensorConfiguration& configuration);
-  void ListenSensorEvent();
-  HRESULT SensorReadingChanged(ISensorDataReport* report,
-                               SensorReading* reading) const;
-  void SensorError();
-
- private:
-  friend class EventListener;
-
-  const std::unique_ptr<ReaderInitParams> init_params_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  // Following class members are protected by lock, because SetClient,
-  // StartSensor and StopSensor are called from another thread by
-  // PlatformSensorWin that can modify internal state of the object.
-  base::Lock lock_;
-  bool sensor_active_;
-  Client* client_;
-  base::win::ScopedComPtr<ISensor> sensor_;
-  scoped_refptr<EventListener> event_listener_;
-  base::WeakPtrFactory<PlatformSensorReaderWin> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformSensorReaderWin);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_READER_WIN_H_