Update HTML forms classes to use OVERRIDE / FINAL when needed

Source/core/html/forms/NumberInputType.h

 /*
  * 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 19 matching lines @@
 
 #ifndef NumberInputType_h
 #define NumberInputType_h
 
 #include "core/html/forms/TextFieldInputType.h"
 
 namespace WebCore {
 
 class ExceptionState;
 
-class NumberInputType : public TextFieldInputType {
+class NumberInputType FINAL : public TextFieldInputType {
 public:
     static PassRefPtr<InputType> create(HTMLInputElement&);
 
 private:
     NumberInputType(HTMLInputElement& element) : TextFieldInputType(element) { }
     virtual void countUsage() OVERRIDE;
     virtual const AtomicString& formControlType() const OVERRIDE;
     virtual void setValue(const String&, bool valueChanged, TextFieldEventBehavior) OVERRIDE;
     virtual double valueAsDouble() const OVERRIDE;
     virtual void setValueAsDouble(double, TextFieldEventBehavior, ExceptionState&) const OVERRIDE;
@@ skipping 18 matching lines @@
     virtual bool supportsPlaceholder() const OVERRIDE;
     virtual bool isNumberField() const OVERRIDE;
     virtual void minOrMaxAttributeChanged() OVERRIDE;
     virtual void stepAttributeChanged() OVERRIDE;
     virtual bool supportsSelectionAPI() const OVERRIDE;
 };
 
 } // namespace WebCore
 
 #endif // NumberInputType_h