Revert of Device Orientation API on Chrome OS

content/browser/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 "content/browser/device_sensors/data_fetcher_shared_memory.h"
-
-#include "content/browser/device_sensors/sensor_manager_chromeos.h"
-
-namespace content {
-
-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:
-      // TODO(jonross): Implement Device Motion API. (crbug.com/427662)
-      NOTIMPLEMENTED();
-      return false;
-    case CONSUMER_TYPE_ORIENTATION:
-      return sensor_manager_->StartFetchingDeviceOrientationData(
-          static_cast<DeviceOrientationHardwareBuffer*>(buffer));
-    case CONSUMER_TYPE_LIGHT:
-      NOTIMPLEMENTED();
-      return false;
-  }
-  NOTREACHED();
-  return false;
-}
-
-bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
-  switch (consumer_type) {
-    case CONSUMER_TYPE_MOTION:
-      NOTIMPLEMENTED();
-      return false;
-    case CONSUMER_TYPE_ORIENTATION:
-      return sensor_manager_->StopFetchingDeviceOrientationData();
-    case CONSUMER_TYPE_LIGHT:
-      NOTIMPLEMENTED();
-      return false;
-  }
-  NOTREACHED();
-  return false;
-}
-
-}  // namespace content