Fix virtual/override/final usage in the rest of Source/core/.

Source/core/events/WheelEvent.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 60 matching lines @@
     int wheelDelta() const { return wheelDeltaY() ? wheelDeltaY() : wheelDeltaX(); } // Deprecated.
     int wheelDeltaX() const { return m_wheelDelta.x(); } // Deprecated, negative when scrolling right.
     int wheelDeltaY() const { return m_wheelDelta.y(); } // Deprecated, negative when scrolling down.
     unsigned deltaMode() const { return m_deltaMode; }
     float ticksX() const { return static_cast<float>(m_wheelDelta.x()) / TickMultiplier; }
     float ticksY() const { return static_cast<float>(m_wheelDelta.y()) / TickMultiplier; }
     bool canScroll() const { return m_canScroll; }
     bool hasPreciseScrollingDeltas() const { return m_hasPreciseScrollingDeltas; }
     RailsMode railsMode() const { return m_railsMode; }
 
-    virtual const AtomicString& interfaceName() const override;
-    virtual bool isMouseEvent() const override;
-    virtual bool isWheelEvent() const override;
+    const AtomicString& interfaceName() const override;
+    bool isMouseEvent() const override;
+    bool isWheelEvent() const override;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     WheelEvent();
     WheelEvent(const AtomicString&, const WheelEventInit&);
     WheelEvent(const FloatPoint& wheelTicks, const FloatPoint& rawDelta,
         unsigned, PassRefPtrWillBeRawPtr<AbstractView>, const IntPoint& screenLocation, const IntPoint& windowLocation,
         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short buttons, bool canScroll, bool hasPreciseScrollingDeltas, RailsMode);
 
     IntPoint m_wheelDelta;
     double m_deltaX;
     double m_deltaY;
     double m_deltaZ;
     unsigned m_deltaMode;
     bool m_canScroll;
     bool m_hasPreciseScrollingDeltas;
     RailsMode m_railsMode;
 };
 
 DEFINE_EVENT_TYPE_CASTS(WheelEvent);
 
 class WheelEventDispatchMediator final : public EventDispatchMediator {
 public:
     static PassRefPtrWillBeRawPtr<WheelEventDispatchMediator> create(const PlatformWheelEvent&, PassRefPtrWillBeRawPtr<AbstractView>);
 private:
     WheelEventDispatchMediator(const PlatformWheelEvent&, PassRefPtrWillBeRawPtr<AbstractView>);
     WheelEvent& event() const;
-    virtual bool dispatchEvent(EventDispatcher&) const override;
+    bool dispatchEvent(EventDispatcher&) const override;
 };
 
 } // namespace blink
 
 #endif // WheelEvent_h