[sensors] Magnetometer sensor bindings implementation

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

+// 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.
+
+#ifndef MagnetometerReading_h
+#define MagnetometerReading_h
+
+#include "modules/sensor/SensorReading.h"
+
+namespace blink {
+
+class MagnetometerReadingInit;
+
+class MagnetometerReading final : public SensorReading {
+  DEFINE_WRAPPERTYPEINFO();
+
+ public:
+  static MagnetometerReading* create(const MagnetometerReadingInit& init) {
+    return new MagnetometerReading(init);
+  }
+
+  static MagnetometerReading* create(const device::SensorReading& data) {
+    return new MagnetometerReading(data);
+  }
+
+  ~MagnetometerReading() override;
+
+  double x() const;
+  double y() const;
+  double z() const;
+
+  bool isReadingUpdated(const device::SensorReading&) const override;
+
+  DECLARE_VIRTUAL_TRACE();
+
+ private:
+  explicit MagnetometerReading(const MagnetometerReadingInit&);
+  explicit MagnetometerReading(const device::SensorReading&);
+};
+
+}  // namepsace blink
+
+#endif  // MagnetometerReading_h