Extract device_sensors to /device via Mojofication

content/browser/device_sensors/device_inertial_sensor_service.h

-// Copyright 2014 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_DEVICE_SENSORS_DEVICE_INERTIAL_SENSOR_SERVICE_H_
-#define CONTENT_BROWSER_DEVICE_SENSORS_DEVICE_INERTIAL_SENSOR_SERVICE_H_
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/shared_memory.h"
-#include "base/memory/singleton.h"
-#include "base/threading/thread_checker.h"
-#include "content/browser/device_sensors/inertial_sensor_consts.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-class DataFetcherSharedMemory;
-
-// Owns the data fetcher for Device Motion and Orientation and keeps track of
-// the number of consumers currently using the data. The data fetcher is stopped
-// when there are no consumers.
-class CONTENT_EXPORT DeviceInertialSensorService {
- public:
-  // Returns the DeviceInertialSensorService singleton.
-  static DeviceInertialSensorService* GetInstance();
-
-  // Increments the number of users of the provider. The Provider is running
-  // when there's > 0 users, and is paused when the count drops to 0.
-  // Must be called on the I/O thread.
-  void AddConsumer(ConsumerType consumer_type);
-
-  // Removes a consumer. Should be matched with an AddConsumer call.
-  // Must be called on the I/O thread.
-  void RemoveConsumer(ConsumerType cosumer_type);
-
-  // Returns the shared memory handle of the device motion data duplicated
-  // into the given process.
-  base::SharedMemoryHandle GetSharedMemoryHandleForProcess(
-      ConsumerType consumer_type, base::ProcessHandle handle);
-
-  // Stop/join with the background polling thread in |provider_|.
-  void Shutdown();
-
-  // Injects a custom data fetcher for testing purposes. This class takes
-  // ownership of the injected object.
-  void SetDataFetcherForTesting(DataFetcherSharedMemory* test_data_fetcher);
-
- private:
-  friend struct DefaultSingletonTraits<DeviceInertialSensorService>;
-
-  DeviceInertialSensorService();
-  virtual ~DeviceInertialSensorService();
-
-  bool ChangeNumberConsumers(ConsumerType consumer_type,
-      int delta);
-  int GetNumberConsumers(ConsumerType consumer_type) const;
-
-  int num_light_readers_;
-  int num_motion_readers_;
-  int num_orientation_readers_;
-  bool is_shutdown_;
-  scoped_ptr<DataFetcherSharedMemory> data_fetcher_;
-  base::ThreadChecker thread_checker_;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceInertialSensorService);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_DEVICE_SENSORS_DEVICE_INERTIAL_SENSOR_SERVICE_H_