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

device/generic_sensor/platform_sensor_ambient_light_mac.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_PLATFORM_SENSOR_AMBIENT_LIGHT_SENSOR_MAC_H_
-#define DEVICE_GENERIC_PLATFORM_SENSOR_AMBIENT_LIGHT_SENSOR_MAC_H_
-
-#include <IOKit/IOKitLib.h>
-
-#include "base/mac/scoped_ionotificationportref.h"
-#include "base/mac/scoped_ioobject.h"
-#include "device/generic_sensor/platform_sensor.h"
-
-namespace device {
-
-// Implementation of PlatformSensor for macOS to query the ambient light sensor.
-// This is a single instance object per browser process which is created by
-// The singleton PlatformSensorProviderMac. If there are no clients, this
-// instance is not created.
-class PlatformSensorAmbientLightMac : public PlatformSensor {
- public:
-  // Construct a platform sensor of AMBIENT_LIGHT, given a buffer |mapping|
-  // to write the result back.
-  PlatformSensorAmbientLightMac(mojo::ScopedSharedBufferMapping mapping,
-                                PlatformSensorProvider* provider);
-
-  mojom::ReportingMode GetReportingMode() override;
-  // Can only be called once, the first time or after a StopSensor call.
-  bool StartSensor(const PlatformSensorConfiguration& configuration) override;
-  void StopSensor() override;
-
- protected:
-  ~PlatformSensorAmbientLightMac() override;
-  bool CheckSensorConfiguration(
-      const PlatformSensorConfiguration& configuration) override;
-  PlatformSensorConfiguration GetDefaultConfiguration() override;
-
- private:
-  bool ReadAndUpdate();
-  static void IOServiceCallback(void* context,
-                                io_service_t service,
-                                natural_t message_type,
-                                void* message_argument);
-
-  // IOService representing the LMU sensor.
-  base::mac::ScopedIOObject<io_service_t> light_sensor_service_;
-  // Port used to get the notifications from the sensor.
-  base::mac::ScopedIONotificationPortRef light_sensor_port_;
-  // IO Object used to query the value of the sensor.
-  base::mac::ScopedIOObject<io_object_t> light_sensor_object_;
-  // IO Notifications created by IOServiceAddInterestNotification.
-  base::mac::ScopedIOObject<io_object_t> light_sensor_notification_;
-  // IO Notifications created by IOServiceAddInterestNotification when the
-  // sensor is busy.
-  base::mac::ScopedIOObject<io_object_t> light_sensor_busy_notification_;
-  double current_lux_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformSensorAmbientLightMac);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_GENERIC_PLATFORM_SENSOR_AMBIENT_LIGHT_SENSOR_MAC_H_