Move //device/sensor impl to be part of the internal implemenation of the Device Service.

device/sensors/data_fetcher_shared_memory_chromeos.cc

-// Copyright 2015 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.
-
-#include "device/sensors/data_fetcher_shared_memory.h"
-
-#include "device/sensors/sensor_manager_chromeos.h"
-
-namespace device {
-
-DataFetcherSharedMemory::DataFetcherSharedMemory() {}
-
-DataFetcherSharedMemory::~DataFetcherSharedMemory() {}
-
-bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) {
-  DCHECK(buffer);
-  if (!sensor_manager_)
-    sensor_manager_.reset(new SensorManagerChromeOS);
-
-  switch (consumer_type) {
-    case CONSUMER_TYPE_MOTION:
-      sensor_manager_->StartFetchingDeviceMotionData(
-          static_cast<DeviceMotionHardwareBuffer*>(buffer));
-      return true;
-    case CONSUMER_TYPE_ORIENTATION:
-      sensor_manager_->StartFetchingDeviceOrientationData(
-          static_cast<DeviceOrientationHardwareBuffer*>(buffer));
-      return true;
-    case CONSUMER_TYPE_ORIENTATION_ABSOLUTE: {
-      orientation_absolute_buffer_ =
-          static_cast<DeviceOrientationHardwareBuffer*>(buffer);
-      // Absolute device orientation not available on Chrome OS, let the
-      // implementation fire an all-null event to signal this to blink.
-      orientation_absolute_buffer_->seqlock.WriteBegin();
-      orientation_absolute_buffer_->data.absolute = true;
-      orientation_absolute_buffer_->data.all_available_sensors_are_active =
-          true;
-      orientation_absolute_buffer_->seqlock.WriteEnd();
-      return false;
-    }
-    case CONSUMER_TYPE_LIGHT:
-      NOTIMPLEMENTED();
-      return false;
-  }
-  NOTREACHED();
-  return false;
-}
-
-bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
-  switch (consumer_type) {
-    case CONSUMER_TYPE_MOTION:
-      return sensor_manager_->StopFetchingDeviceMotionData();
-    case CONSUMER_TYPE_ORIENTATION:
-      return sensor_manager_->StopFetchingDeviceOrientationData();
-    case CONSUMER_TYPE_ORIENTATION_ABSOLUTE:
-      if (orientation_absolute_buffer_) {
-        orientation_absolute_buffer_->seqlock.WriteBegin();
-        orientation_absolute_buffer_->data.all_available_sensors_are_active =
-            false;
-        orientation_absolute_buffer_->seqlock.WriteEnd();
-        orientation_absolute_buffer_ = nullptr;
-      }
-      return true;
-    case CONSUMER_TYPE_LIGHT:
-      NOTIMPLEMENTED();
-      return false;
-  }
-  NOTREACHED();
-  return false;
-}
-
-}  // namespace device