WIP : Generic Sensor API implementation

third_party/WebKit/Source/modules/sensor/PressureSensorReading.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 PressureSensorReading_h
+#define PressureSensorReading_h
+
+#include <limits>
+
+#include "modules/sensor/SensorReading.h"
+
+namespace blink {
+
+class MODULES_EXPORT PressureSensorReading : public SensorReading {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static PressureSensorReading* create(SensorController* controller)
+    {
+        return new PressureSensorReading(controller);
+    }
+
+    DECLARE_VIRTUAL_TRACE();
+
+    DOMHighResTimeStamp timeStamp() const final;
+    double pressure() const;
+
+    UpdateStatus updateInternalData() final;
+
+private:
+    explicit PressureSensorReading(SensorController* controller);
+    void refreshData() const;
+    struct Data
+    {
+        Data()
+            : timestamp(0)
+            , pressure(std::numeric_limits<double>::infinity()) { }
+        double timestamp;
+        double pressure;
+        double unused[device::sensors::blink::kSensorReadingFieldsCount - 2];
+    } mutable m_data;
+};
+
+} // namepsace blink
+
+#endif // PressureSensorReading_h