Implement DeviceLight

Source/modules/device_light/DeviceLightEvent.h

Index: Source/modules/device_light/DeviceLightEvent.h
diff --git a/Source/modules/device_light/DeviceLightEvent.h b/Source/modules/device_light/DeviceLightEvent.h
new file mode 100644
index 0000000000000000000000000000000000000000..f96b856b0cfc0bc6b7bb098b8f33fc9cd0ff0246
--- /dev/null
+++ b/Source/modules/device_light/DeviceLightEvent.h
@@ -0,0 +1,55 @@
+// Copyright 2014 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 DeviceLightEvent_h
+#define DeviceLightEvent_h
+
+#include "core/events/Event.h"
+
+namespace WebCore {
+
+struct DeviceLightEventInit : public EventInit {
+    DeviceLightEventInit()
+        : value(std::numeric_limits<double>::infinity())
+    {
+        bubbles = true;
+    };
+
+    double value;
+};
+
+class DeviceLightEvent FINAL : public Event {
+public:
+    virtual ~DeviceLightEvent();
+
+    static PassRefPtr<DeviceLightEvent> create()
+    {
+        return adoptRef(new DeviceLightEvent);
+    }
+    static PassRefPtr<DeviceLightEvent> create(const AtomicString& eventType, const double value)
+    {
+        return adoptRef(new DeviceLightEvent(eventType, value));
+    }
+    static PassRefPtr<DeviceLightEvent> create(const AtomicString& eventType, const DeviceLightEventInit& initializer)
+    {
+        return adoptRef(new DeviceLightEvent(eventType, initializer));
+    }
+
+    double value() const { return m_value; }
+
+    virtual const AtomicString& interfaceName() const OVERRIDE;
+
+private:
+    DeviceLightEvent();
+    DeviceLightEvent(const AtomicString& eventType, const double value);
+    DeviceLightEvent(const AtomicString& eventType, const DeviceLightEventInit& initializer);
+
+    double m_value;
+};
+
+DEFINE_TYPE_CASTS(DeviceLightEvent, Event, event, event->interfaceName() == EventNames::DeviceLightEvent, event.interfaceName() == EventNames::DeviceLightEvent);
+
+} // namespace WebCore
+
+#endif // DeviceLightEvent_h