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

Source/core/html/shadow/DateTimeEditElement.h

 /*
  * Copyright (C) 2012 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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 63 matching lines @@
 
         LayoutParameters(Locale& locale, const StepRange& stepRange)
             : locale(locale)
             , stepRange(stepRange)
         {
         }
     };
 
     static PassRefPtrWillBeRawPtr<DateTimeEditElement> create(Document&, EditControlOwner&);
 
-    virtual ~DateTimeEditElement();
+    ~DateTimeEditElement() override;
     DECLARE_VIRTUAL_TRACE();
 
     void addField(PassRefPtrWillBeRawPtr<DateTimeFieldElement>);
     bool anyEditableFieldsHaveValues() const;
     void blurByOwner();
-    virtual void defaultEventHandler(Event*) override;
+    void defaultEventHandler(Event*) override;
     void disabledStateChanged();
     Element* fieldsWrapperElement() const;
     void focusIfNoFocus();
     // If oldFocusedNode is one of sub-fields, focus on it. Otherwise focus on
     // the first sub-field.
     void focusByOwner(Element* oldFocusedElement = 0);
     bool hasFocusedField();
     void readOnlyStateChanged();
     void removeEditControlOwner() { m_editControlOwner = nullptr; }
     void resetFields();
@@ skipping 26 matching lines @@
     size_t fieldIndexOf(const DateTimeFieldElement&) const;
     DateTimeFieldElement* focusedField() const;
     size_t focusedFieldIndex() const;
     bool focusOnNextFocusableField(size_t startIndex);
     bool isDisabled() const;
     bool isReadOnly() const;
     void layout(const LayoutParameters&, const DateComponents&);
     void updateUIState();
 
     // Element function.
-    virtual PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
-    virtual bool isDateTimeEditElement() const override;
+    PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
+    bool isDateTimeEditElement() const override;
 
     // DateTimeFieldElement::FieldOwner functions.
-    virtual void didBlurFromField() override;
-    virtual void didFocusOnField() override;
-    virtual void fieldValueChanged() override;
-    virtual bool focusOnNextField(const DateTimeFieldElement&) override;
-    virtual bool focusOnPreviousField(const DateTimeFieldElement&) override;
-    virtual bool isFieldOwnerDisabled() const override;
-    virtual bool isFieldOwnerReadOnly() const override;
-    virtual AtomicString localeIdentifier() const override;
-    virtual void fieldDidChangeValueByKeyboard() override;
+    void didBlurFromField() override;
+    void didFocusOnField() override;
+    void fieldValueChanged() override;
+    bool focusOnNextField(const DateTimeFieldElement&) override;
+    bool focusOnPreviousField(const DateTimeFieldElement&) override;
+    bool isFieldOwnerDisabled() const override;
+    bool isFieldOwnerReadOnly() const override;
+    AtomicString localeIdentifier() const override;
+    void fieldDidChangeValueByKeyboard() override;
 
     WillBeHeapVector<RawPtrWillBeMember<DateTimeFieldElement>, maximumNumberOfFields> m_fields;
     RawPtrWillBeMember<EditControlOwner> m_editControlOwner;
 };
 
 DEFINE_TYPE_CASTS(DateTimeEditElement, Element, element, element->isDateTimeEditElement(), element.isDateTimeEditElement());
 
 } // namespace blink
 
 #endif
 #endif