WIP : Generic Sensor API implementation

third_party/WebKit/Source/modules/sensor/SensorPollingStrategy.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 SensorPollingStrategy_h
+#define SensorPollingStrategy_h
+
+#include "device/sensors/sensor_factory.mojom-blink.h"
+#include "platform/heap/Handle.h"
+#include "wtf/Functional.h"
+
+namespace blink {
+
+class SensorPollingStrategy : public GarbageCollectedFinalized<SensorPollingStrategy> {
+public:
+    static SensorPollingStrategy* create(double frequencySec, std::unique_ptr<Function<void()>>, device::sensors::blink::ReportingMode);
+
+    virtual void onSensorReadingChanged() {}
+    virtual void startPolling() = 0;
+    virtual void stopPolling() = 0;
+
+    virtual ~SensorPollingStrategy() {}
+
+    DEFINE_INLINE_VIRTUAL_TRACE() {}
+
+protected:
+    SensorPollingStrategy(double frequencySec, std::unique_ptr<Function<void()>>);
+    double m_frequency;
+    std::unique_ptr<Function<void()>> m_pollFunc;
+};
+
+} // namespace blink
+
+#endif // SensorPollingStrategy_h