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

Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp

 /*
  * 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:
  *
  *     * 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
@@ skipping 47 matching lines @@
     DateTimeFormatValidator()
         : m_hasYear(false)
         , m_hasMonth(false)
         , m_hasWeek(false)
         , m_hasDay(false)
         , m_hasAMPM(false)
         , m_hasHour(false)
         , m_hasMinute(false)
         , m_hasSecond(false) { }
 
-    virtual void visitField(DateTimeFormat::FieldType, int) override final;
-    virtual void visitLiteral(const String&) override final { }
+    void visitField(DateTimeFormat::FieldType, int) final;
+    void visitLiteral(const String&) final { }
 
     bool validateFormat(const String& format, const BaseMultipleFieldsDateAndTimeInputType&);
 
 private:
     bool m_hasYear;
     bool m_hasMonth;
     bool m_hasWeek;
     bool m_hasDay;
     bool m_hasAMPM;
     bool m_hasHour;
@@ skipping 540 matching lines @@
 AXObject* BaseMultipleFieldsDateAndTimeInputType::popupRootAXObject()
 {
     if (PickerIndicatorElement* picker = pickerIndicatorElement())
         return picker->popupRootAXObject();
     return nullptr;
 }
 
 } // namespace blink
 
 #endif