[sensors] Accelerometer sensor bindings implementation

third_party/WebKit/Source/modules/sensor/Accelerometer.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 Accelerometer_h
+#define Accelerometer_h
+
+#include "modules/sensor/AccelerometerOptions.h"
+#include "modules/sensor/Sensor.h"
+
+namespace blink {
+
+class AccelerometerReading;
+
+class Accelerometer final : public Sensor {
+  DEFINE_WRAPPERTYPEINFO();
+
+ public:
+  static Accelerometer* create(ScriptState*,
+                               const AccelerometerOptions&,
+                               ExceptionState&);
+  static Accelerometer* create(ScriptState*, ExceptionState&);
+
+  AccelerometerReading* reading() const;
+  bool includesGravity() const;
+
+  DECLARE_VIRTUAL_TRACE();
+
+ private:
+  Accelerometer(ScriptState*, const AccelerometerOptions&, ExceptionState&);
+  // Sensor overrides.
+  std::unique_ptr<SensorReadingFactory> createSensorReadingFactory() override;
+  AccelerometerOptions m_accelerometerOptions;
+};
+
+}  // namespace blink
+
+#endif  // Accelerometer_h