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

device/generic_sensor/platform_sensor_accelerometer_mac.h

-// Copyright 2017 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_ACCELEROMETER_MAC_H_
-#define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_ACCELEROMETER_MAC_H_
-
-#include <memory>
-
-#include "base/timer/timer.h"
-#include "device/generic_sensor/platform_sensor.h"
-
-class SuddenMotionSensor;
-
-namespace device {
-
-// Implementation of PlatformSensor for macOS to query the accelerometer
-// 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 PlatformSensorAccelerometerMac : public PlatformSensor {
- public:
-  // Construct a platform sensor of type ACCELEROMETER, given a buffer |mapping|
-  // where readings will be written.
-  PlatformSensorAccelerometerMac(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:
-  ~PlatformSensorAccelerometerMac() override;
-  bool CheckSensorConfiguration(
-      const PlatformSensorConfiguration& configuration) override;
-  PlatformSensorConfiguration GetDefaultConfiguration() override;
-
- private:
-  void PollForData();
-
-  std::unique_ptr<SuddenMotionSensor> sudden_motion_sensor_;
-
-  SensorReading reading_;
-
-  // Repeating timer for data polling.
-  base::RepeatingTimer timer_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformSensorAccelerometerMac);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_ACCELEROMETER_MAC_H_