Remove AtomicStringImpl.

Source/core/css/resolver/ScopedStyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 287 matching lines @@
 
     unsigned rulesSize = m_authorStyle->m_regionSelectorsAndRuleSets.size();
     for (unsigned i = 0; i < rulesSize; ++i) {
         ASSERT(m_authorStyle->m_regionSelectorsAndRuleSets.at(i).ruleSet.get());
         if (checkRegionSelector(m_authorStyle->m_regionSelectorsAndRuleSets.at(i).selector, regionElement))
             return true;
     }
     return false;
 }
 
-const StyleRuleKeyframes* ScopedStyleResolver::keyframeStylesForAnimation(const AtomicStringImpl* animationName)
+const StyleRuleKeyframes* ScopedStyleResolver::keyframeStylesForAnimation(const StringImpl* animationName)
 {
     if (m_keyframesRuleMap.isEmpty())
         return 0;
 
     m_keyframesRuleMap.checkConsistency();
 
     KeyframesRuleMap::iterator it = m_keyframesRuleMap.find(animationName);
     if (it == m_keyframesRuleMap.end())
         return 0;
 
@@ skipping 69 matching lines @@
     collector.matchPageRules(m_authorStyle.get());
 }
 
 void ScopedStyleResolver::collectViewportRulesTo(StyleResolver* resolver) const
 {
     if (m_authorStyle)
         resolver->collectViewportRules(m_authorStyle.get());
 }
 
 } // namespace WebCore