[Sensors] Remove SensorReading interfaces

third_party/WebKit/Source/modules/sensor/MagnetometerReading.cpp

-// 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 "modules/sensor/MagnetometerReading.h"
-
-#include "modules/sensor/MagnetometerReadingInit.h"
-#include "wtf/CurrentTime.h"
-
-namespace blink {
-
-namespace {
-
-device::SensorReading ToReadingData(const MagnetometerReadingInit& init) {
-  device::SensorReading result;
-  result.timestamp = WTF::monotonicallyIncreasingTime();
-  if (init.hasX())
-    result.values[0] = init.x();
-  if (init.hasY())
-    result.values[1] = init.y();
-  if (init.hasZ())
-    result.values[2] = init.z();
-
-  return result;
-}
-
-}  // namespace
-
-MagnetometerReading::MagnetometerReading(const MagnetometerReadingInit& init)
-    : SensorReading(ToReadingData(init)) {}
-
-MagnetometerReading::MagnetometerReading(const device::SensorReading& data)
-    : SensorReading(data) {}
-
-MagnetometerReading::~MagnetometerReading() = default;
-
-double MagnetometerReading::x() const {
-  return data().values[0];
-}
-
-double MagnetometerReading::y() const {
-  return data().values[1];
-}
-
-double MagnetometerReading::z() const {
-  return data().values[2];
-}
-
-bool MagnetometerReading::isReadingUpdated(
-    const device::SensorReading& previous) const {
-  return previous.values[0] != x() || previous.values[1] != y() ||
-         previous.values[2] != z();
-}
-
-DEFINE_TRACE(MagnetometerReading) {
-  SensorReading::trace(visitor);
-}
-
-}  // namespace blink