Fix virtual/override/final usage in Source/core/html/.

Source/core/html/shadow/SpinButtonElement.h

 /*
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 48 matching lines @@
     // The owner of SpinButtonElement must call removeSpinButtonOwner
     // because SpinButtonElement can be outlive SpinButtonOwner
     // implementation, e.g. during event handling.
     static PassRefPtrWillBeRawPtr<SpinButtonElement> create(Document&, SpinButtonOwner&);
     UpDownState upDownState() const { return m_upDownState; }
     void releaseCapture(EventDispatch = EventDispatchAllowed);
     void removeSpinButtonOwner() { m_spinButtonOwner = nullptr; }
 
     void step(int amount);
 
-    virtual bool willRespondToMouseMoveEvents() override;
-    virtual bool willRespondToMouseClickEvents() override;
+    bool willRespondToMouseMoveEvents() override;
+    bool willRespondToMouseClickEvents() override;
 
     void forwardEvent(Event*);
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     SpinButtonElement(Document&, SpinButtonOwner&);
 
-    virtual void detach(const AttachContext&) override;
-    virtual bool isSpinButtonElement() const override { return true; }
-    virtual bool isDisabledFormControl() const override { return shadowHost() && shadowHost()->isDisabledFormControl(); }
-    virtual bool matchesReadOnlyPseudoClass() const override;
-    virtual bool matchesReadWritePseudoClass() const override;
-    virtual void defaultEventHandler(Event*) override;
-    virtual void willOpenPopup() override;
+    void detach(const AttachContext&) override;
+    bool isSpinButtonElement() const override { return true; }
+    bool isDisabledFormControl() const override { return shadowHost() && shadowHost()->isDisabledFormControl(); }
+    bool matchesReadOnlyPseudoClass() const override;
+    bool matchesReadWritePseudoClass() const override;
+    void defaultEventHandler(Event*) override;
+    void willOpenPopup() override;
     void doStepAction(int);
     void startRepeatingTimer();
     void stopRepeatingTimer();
     void repeatingTimerFired(Timer<SpinButtonElement>*);
-    virtual void setHovered(bool = true) override;
+    void setHovered(bool = true) override;
     bool shouldRespondToMouseEvents();
-    virtual bool isMouseFocusable() const override { return false; }
+    bool isMouseFocusable() const override { return false; }
 
     RawPtrWillBeMember<SpinButtonOwner> m_spinButtonOwner;
     bool m_capturing;
     UpDownState m_upDownState;
     UpDownState m_pressStartingState;
     Timer<SpinButtonElement> m_repeatingTimer;
 };
 
 DEFINE_TYPE_CASTS(SpinButtonElement, Node, node, toElement(node)->isSpinButtonElement(), toElement(node).isSpinButtonElement());
 
 } // namespace
 
 #endif