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

Source/core/html/HTMLOptionElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. 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 43 matching lines @@
     void setSelected(bool);
 
     HTMLDataListElement* ownerDataListElement() const;
     HTMLSelectElement* ownerSelectElement() const;
 
     String label() const;
     void setLabel(const AtomicString&);
 
     bool ownElementDisabled() const { return m_disabled; }
 
-    virtual bool isDisabledFormControl() const override;
+    bool isDisabledFormControl() const override;
 
     String textIndentedToRespectGroupLabel() const;
 
     void setSelectedState(bool);
 
     HTMLFormElement* form() const;
     bool spatialNavigationFocused() const;
 
     bool isDisplayNone() const;
 
     int listIndex() const;
 
 private:
     explicit HTMLOptionElement(Document&);
     ~HTMLOptionElement();
 
-    virtual bool supportsFocus() const override;
-    virtual void attach(const AttachContext& = AttachContext()) override;
-    virtual void detach(const AttachContext& = AttachContext()) override;
-    virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
-    virtual InsertionNotificationRequest insertedInto(ContainerNode*) override;
-    virtual void didNotifySubtreeInsertionsToDocument() override;
-    virtual void removedFrom(ContainerNode*) override;
-    virtual void accessKeyAction(bool) override;
-    virtual void childrenChanged(const ChildrenChange&) override;
+    bool supportsFocus() const override;
+    void attach(const AttachContext& = AttachContext()) override;
+    void detach(const AttachContext& = AttachContext()) override;
+    void parseAttribute(const QualifiedName&, const AtomicString&) override;
+    InsertionNotificationRequest insertedInto(ContainerNode*) override;
+    void didNotifySubtreeInsertionsToDocument() override;
+    void removedFrom(ContainerNode*) override;
+    void accessKeyAction(bool) override;
+    void childrenChanged(const ChildrenChange&) override;
 
     // <option> never has a layoutObject so we manually manage a cached style.
     void updateNonComputedStyle();
-    virtual ComputedStyle* nonLayoutObjectComputedStyle() const override;
-    virtual PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
-    virtual void didAddUserAgentShadowRoot(ShadowRoot&) override;
+    ComputedStyle* nonLayoutObjectComputedStyle() const override;
+    PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
+    void didAddUserAgentShadowRoot(ShadowRoot&) override;
 
     String collectOptionInnerText() const;
 
     void updateLabel();
 
     bool m_disabled;
     bool m_isSelected;
     RefPtr<ComputedStyle> m_style;
 };
 
 } // namespace blink
 
 #endif // HTMLOptionElement_h