Add number() static methods to AtomicString class

Source/core/html/HTMLSelectElement.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
@@ skipping 271 matching lines @@
     return HTMLFormControlElementWithState::isPresentationAttribute(name);
 }
 
 void HTMLSelectElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == sizeAttr) {
         int oldSize = m_size;
         // Set the attribute value to a number.
         // This is important since the style rules for this attribute can determine the appearance property.
         int size = value.toInt();
-        String attrSize = String::number(size);
+        AtomicString attrSize = AtomicString::number(size);
         if (attrSize != value) {
             // FIXME: This is horribly factored.
             if (Attribute* sizeAttribute = ensureUniqueElementData()->getAttributeItem(sizeAttr))
                 sizeAttribute->setValue(attrSize);
         }
         size = max(size, 1);
 
         // Ensure that we've determined selectedness of the items at least once prior to changing the size.
         if (oldSize != size)
             updateListItemSelectedStates();
@@ skipping 91 matching lines @@
     setAttribute(multipleAttr, multiple ? "" : 0);
 
     // Restore selectedIndex after changing the multiple flag to preserve
     // selection as single-line and multi-line has different defaults.
     if (oldMultiple != this->multiple())
         setSelectedIndex(oldSelectedIndex);
 }
 
 void HTMLSelectElement::setSize(int size)
 {
-    setAttribute(sizeAttr, String::number(size));
+    setAttribute(sizeAttr, AtomicString::number(size));
 }
 
 Node* HTMLSelectElement::namedItem(const AtomicString& name)
 {
     return options()->namedItem(name);
 }
 
 Node* HTMLSelectElement::item(unsigned index)
 {
     return options()->item(index);
@@ skipping 1164 matching lines @@
     remove(index);
     return true;
 }
 
 bool HTMLSelectElement::isInteractiveContent() const
 {
     return true;
 }
 
 } // namespace