Remove AtomicStringImpl.

Source/core/css/resolver/StyleResolver.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 322 matching lines @@
     void matchPageRulesForList(Vector<StyleRulePage*>& matchedRules, const Vector<StyleRulePage*>&, bool isLeftPage, bool isFirstPage, const String& pageName);
     Settings* documentSettings() { return m_document->settings(); }
 
     bool isLeftPage(int pageIndex) const;
     bool isRightPage(int pageIndex) const { return !isLeftPage(pageIndex); }
     bool isFirstPage(int pageIndex) const;
     String pageName(int pageIndex) const;
 
     DocumentRuleSets m_ruleSets;
 
-    typedef HashMap<AtomicStringImpl*, RefPtr<StyleRuleKeyframes> > KeyframesRuleMap;
+    typedef HashMap<StringImpl*, RefPtr<StyleRuleKeyframes> > KeyframesRuleMap;
     KeyframesRuleMap m_keyframesRuleMap;
 
 public:
     static RenderStyle* styleNotYetAvailable() { return s_styleNotYetAvailable; }
 
     PassRefPtr<StyleImage> styleImage(CSSPropertyID, CSSValue*);
     PassRefPtr<StyleImage> cachedOrPendingFromValue(CSSPropertyID, CSSImageValue*);
     PassRefPtr<StyleImage> generatedOrPendingFromValue(CSSPropertyID, CSSImageGeneratorValue*);
     PassRefPtr<StyleImage> setOrPendingFromValue(CSSPropertyID, CSSImageSetValue*);
     PassRefPtr<StyleImage> cursorOrPendingFromValue(CSSPropertyID, CSSCursorImageValue*);
@@ skipping 119 matching lines @@
         PseudoId ignoreDynamicPseudo = NOPSEUDO;
         if (selectorChecker.match(selectorCheckingContext, ignoreDynamicPseudo, DOMSiblingTraversalStrategy()) == SelectorChecker::SelectorMatches)
             return true;
     }
     return false;
 }
 
 } // namespace WebCore
 
 #endif // StyleResolver_h