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

services/device/generic_sensor/platform_sensor_provider_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 SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WIN_H_
-#define SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WIN_H_
-
-#include <SensorsApi.h>
-
-#include "base/win/scoped_comptr.h"
-#include "services/device/generic_sensor/platform_sensor_provider.h"
-
-namespace base {
-template <typename T>
-struct DefaultSingletonTraits;
-class Thread;
-}
-
-namespace device {
-
-class PlatformSensorReaderWin;
-
-// Implementation of PlatformSensorProvider for Windows platform.
-// PlatformSensorProviderWin is responsible for following tasks:
-// - Starts sensor thread and stops it when there are no active sensors.
-// - Initialises ISensorManager and creates sensor reader on sensor thread.
-// - Constructs PlatformSensorWin on IPC thread and returns it to requester.
-class PlatformSensorProviderWin final : public PlatformSensorProvider {
- public:
-  static PlatformSensorProviderWin* GetInstance();
-
-  // Overrides ISensorManager COM interface provided by the system, used
-  // only for testing purposes.
-  void SetSensorManagerForTesting(
-      base::win::ScopedComPtr<ISensorManager> sensor_manager);
-
- protected:
-  ~PlatformSensorProviderWin() override;
-
-  // PlatformSensorProvider interface implementation.
-  void AllSensorsRemoved() override;
-  void CreateSensorInternal(mojom::SensorType type,
-                            mojo::ScopedSharedBufferMapping mapping,
-                            const CreateSensorCallback& callback) override;
-
- private:
-  PlatformSensorProviderWin();
-
-  bool InitializeSensorManager();
-  bool StartSensorThread();
-  void StopSensorThread();
-  std::unique_ptr<PlatformSensorReaderWin> CreateSensorReader(
-      mojom::SensorType type);
-  void SensorReaderCreated(
-      mojom::SensorType type,
-      mojo::ScopedSharedBufferMapping mapping,
-      const CreateSensorCallback& callback,
-      std::unique_ptr<PlatformSensorReaderWin> sensor_reader);
-
- private:
-  friend struct base::DefaultSingletonTraits<PlatformSensorProviderWin>;
-
-  base::win::ScopedComPtr<ISensorManager> sensor_manager_;
-  std::unique_ptr<base::Thread> sensor_thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformSensorProviderWin);
-};
-
-}  // namespace device
-
-#endif  // SERVICES_DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_PROVIDER_WIN_H_