[Sensors] Remove SensorReading interfaces

third_party/WebKit/Source/modules/sensor/Magnetometer.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/Magnetometer.h"
 
-#include "modules/sensor/MagnetometerReading.h"
-
 using device::mojom::blink::SensorType;
 
 namespace blink {
 
 // static
 Magnetometer* Magnetometer::create(ExecutionContext* executionContext,
                                    const SensorOptions& options,
                                    ExceptionState& exceptionState) {
   return new Magnetometer(executionContext, options, exceptionState);
 }
 
 // static
 Magnetometer* Magnetometer::create(ExecutionContext* executionContext,
                                    ExceptionState& exceptionState) {
   return create(executionContext, SensorOptions(), exceptionState);
 }
 
 Magnetometer::Magnetometer(ExecutionContext* executionContext,
                            const SensorOptions& options,
                            ExceptionState& exceptionState)
     : Sensor(executionContext,
              options,
              exceptionState,
              SensorType::MAGNETOMETER) {}
 
-MagnetometerReading* Magnetometer::reading() const {
-  return static_cast<MagnetometerReading*>(Sensor::reading());
+double Magnetometer::x(bool& isNull) const {
+  return readingValue(0, isNull);
 }
 
-std::unique_ptr<SensorReadingFactory>
-Magnetometer::createSensorReadingFactory() {
-  return WTF::makeUnique<SensorReadingFactoryImpl<MagnetometerReading>>();
+double Magnetometer::y(bool& isNull) const {
+  return readingValue(1, isNull);
+}
+
+double Magnetometer::z(bool& isNull) const {
+  return readingValue(2, isNull);
 }
 
 DEFINE_TRACE(Magnetometer) {
   Sensor::trace(visitor);
 }
 
 }  // namespace blink