Make sure getAttribute() / setAttribute() callers use AtomicStrings

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 18 matching lines @@
 
 namespace WebCore {
 
 class ExceptionState;
 class HTMLDataListElement;
 class HTMLSelectElement;
 
 class HTMLOptionElement FINAL : public HTMLElement {
 public:
     static PassRefPtr<HTMLOptionElement> create(Document&);
-    static PassRefPtr<HTMLOptionElement> createForJSConstructor(Document&, const String& data, const String& value,
+    static PassRefPtr<HTMLOptionElement> createForJSConstructor(Document&, const String& data, const AtomicString& value,
         bool defaultSelected, bool selected, ExceptionState&);
 
     virtual String text() const;
     void setText(const String&, ExceptionState&);
 
     int index() const;
 
     String value() const;
-    void setValue(const String&);
+    void setValue(const AtomicString&);
 
     bool selected();
     void setSelected(bool);
 
     HTMLDataListElement* ownerDataListElement() const;
     HTMLSelectElement* ownerSelectElement() const;
 
     String label() const;
-    void setLabel(const String&);
+    void setLabel(const AtomicString&);
 
     bool ownElementDisabled() const { return m_disabled; }
 
     virtual bool isDisabledFormControl() const OVERRIDE;
 
     String textIndentedToRespectGroupLabel() const;
 
     void setSelectedState(bool);
 
 private:
@@ skipping 23 matching lines @@
     bool m_disabled;
     bool m_isSelected;
     RefPtr<RenderStyle> m_style;
 };
 
 DEFINE_NODE_TYPE_CASTS(HTMLOptionElement, hasTagName(HTMLNames::optionTag));
 
 } // namespace WebCore
 
 #endif