Add EventHandlerRegistry

Source/core/dom/WheelController.h

Index: Source/core/dom/WheelController.h
diff --git a/Source/core/dom/WheelController.h b/Source/core/dom/WheelController.h
deleted file mode 100644
index 49879f4f0045652d012bd63b9ea1bd7ad446039d..0000000000000000000000000000000000000000
--- a/Source/core/dom/WheelController.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2013 Google, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WheelController_h
-#define WheelController_h
-
-#include "core/dom/DocumentSupplementable.h"
-#include "core/events/Event.h"
-#include "core/frame/DOMWindowLifecycleObserver.h"
-
-
-namespace WebCore {
-
-class DOMWindow;
-
-class WheelController FINAL : public DocumentSupplement, public DOMWindowLifecycleObserver {
-
-public:
-    virtual ~WheelController();
-
-    static const char* supplementName();
-    static WheelController* from(Document&);
-
-    unsigned wheelEventHandlerCount() { return m_wheelEventHandlerCount; }
-
-    void didAddWheelEventHandler(Document&);
-    void didRemoveWheelEventHandler(Document&);
-
-    // Inherited from DOMWindowLifecycleObserver
-    virtual void didAddEventListener(DOMWindow*, const AtomicString&) OVERRIDE;
-    virtual void didRemoveEventListener(DOMWindow*, const AtomicString&) OVERRIDE;
-
-private:
-    explicit WheelController(Document&);
-
-    unsigned m_wheelEventHandlerCount;
-};
-
-} // namespace WebCore
-
-#endif // WheelController_h