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

device/generic_sensor/platform_sensor_provider.cc

-// 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.
-
-#include "device/generic_sensor/platform_sensor_provider.h"
-
-#if defined(OS_MACOSX)
-#include "device/generic_sensor/platform_sensor_provider_mac.h"
-#elif defined(OS_ANDROID)
-#include "device/generic_sensor/platform_sensor_provider_android.h"
-#elif defined(OS_WIN)
-#include "device/generic_sensor/platform_sensor_provider_win.h"
-#elif defined(OS_LINUX) && defined(USE_UDEV)
-#include "device/generic_sensor/platform_sensor_provider_linux.h"
-#endif
-
-namespace {
-
-static device::PlatformSensorProvider* g_provider_for_testing = nullptr;
-
-}  // namespace
-
-namespace device {
-
-// static
-void PlatformSensorProvider::SetProviderForTesting(
-    PlatformSensorProvider* provider) {
-  g_provider_for_testing = provider;
-}
-
-// static
-PlatformSensorProvider* PlatformSensorProvider::GetInstance() {
-  if (g_provider_for_testing)
-    return g_provider_for_testing;
-#if defined(OS_MACOSX)
-  return PlatformSensorProviderMac::GetInstance();
-#elif defined(OS_ANDROID)
-  return PlatformSensorProviderAndroid::GetInstance();
-#elif defined(OS_WIN)
-  return PlatformSensorProviderWin::GetInstance();
-#elif defined(OS_LINUX) && defined(USE_UDEV)
-  return PlatformSensorProviderLinux::GetInstance();
-#else
-  return nullptr;
-#endif
-}
-
-}  // namespace device