Use AtomicString API directly

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2590 matching lines @@
     }
 #endif
     String value = stripLeadingAndTrailingHTMLSpaces(getAttribute(name));
     if (value.isEmpty())
         return KURL();
     return document().completeURL(value);
 }
 
 int Element::getIntegralAttribute(const QualifiedName& attributeName) const
 {
-    return getAttribute(attributeName).string().toInt();
+    return getAttribute(attributeName).toInt();
 }
 
 void Element::setIntegralAttribute(const QualifiedName& attributeName, int value)
 {
     setAttribute(attributeName, AtomicString::number(value));
 }
 
-unsigned Element::getUnsignedIntegralAttribute(const QualifiedName& attributeName) const
-{
-    return getAttribute(attributeName).string().toUInt();
-}
-
 void Element::setUnsignedIntegralAttribute(const QualifiedName& attributeName, unsigned value)
 {
     // Range restrictions are enforced for unsigned IDL attributes that
     // reflect content attributes,
     //   http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#reflecting-content-attributes-in-idl-attributes
     if (value > 0x7fffffffu)
         value = 0;
     setAttribute(attributeName, AtomicString::number(value));
 }
 
@@ skipping 633 matching lines @@
         return v8::Handle<v8::Object>();
 
     wrapper->SetPrototype(binding->prototype());
 
     wrapperType->refObject(toScriptWrappableBase());
     V8DOMWrapper::associateObjectWithWrapperNonTemplate(this, wrapperType, wrapper, isolate);
     return wrapper;
 }
 
 } // namespace blink