Declare onFinish event handler for AnimationPlayer

Source/core/events/AnimationPlayerEvent.h

Index: Source/core/events/AnimationPlayerEvent.h
diff --git a/Source/core/events/AnimationPlayerEvent.h b/Source/core/events/AnimationPlayerEvent.h
new file mode 100644
index 0000000000000000000000000000000000000000..ab45b64c5022bfc8104d6db5d4e0d76f8ecfa85b
--- /dev/null
+++ b/Source/core/events/AnimationPlayerEvent.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 AnimationPlayerEvent_h
+#define AnimationPlayerEvent_h
+
+#include "core/events/Event.h"
+
+namespace WebCore {
+
+struct AnimationPlayerEventInit : public EventInit {
+    AnimationPlayerEventInit();
+
+    double currentTime;
+    double timelineTime;
+};
+
+class AnimationPlayerEvent FINAL : public Event {
+public:
+    static PassRefPtr<AnimationPlayerEvent> create()
+    {
+        return adoptRef(new AnimationPlayerEvent);
+    }
+    static PassRefPtr<AnimationPlayerEvent> create(const AtomicString& type, double currentTime, double timelineTime)
+    {
+        return adoptRef(new AnimationPlayerEvent(type, currentTime, timelineTime));
+    }
+    static PassRefPtr<AnimationPlayerEvent> create(const AtomicString& type, const AnimationPlayerEventInit& initializer)
+    {
+        return adoptRef(new AnimationPlayerEvent(type, initializer));
+    }
+
+    virtual ~AnimationPlayerEvent();
+
+    double currentTime() const;
+    double timelineTime() const;
+
+    virtual const AtomicString& interfaceName() const OVERRIDE;
+
+    virtual void trace(Visitor*) OVERRIDE;
+
+private:
+    AnimationPlayerEvent();
+    AnimationPlayerEvent(const AtomicString& type, double currentTime, double timelineTime);
+    AnimationPlayerEvent(const AtomicString&, const AnimationPlayerEventInit&);
+
+    double m_currentTime;
+    double m_timelineTime;
+};
+
+} // namespace WebCore
+
+#endif // AnimationPlayerEvent_h