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

services/device/sensors/android/device_sensor_jni_registrar.cc

 // Copyright 2017 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/android/device_sensor_jni_registrar.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
 #include "device/sensors/sensor_manager_android.h"
 
 namespace device {
 namespace android {
 namespace {
 
 const base::android::RegistrationMethod kRegisteredMethods[] = {
     {"SensorManagerAndroid", device::SensorManagerAndroid::Register},
 };
 
 }  // namespace
 
 bool RegisterDeviceSensorJni(JNIEnv* env) {
   return RegisterNativeMethods(env, kRegisteredMethods,
                                arraysize(kRegisteredMethods));
 }
 
 }  // namespace android
 }  // namespace device