Remove AtomicStringImpl.

Source/core/html/HTMLObjectElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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 366 matching lines @@
 
     m_useFallbackContent = true;
 
     // FIXME: Style gets recalculated which is suboptimal.
     lazyReattach();
 }
 
 // FIXME: This should be removed, all callers are almost certainly wrong.
 static bool isRecognizedTagName(const QualifiedName& tagName)
 {
-    DEFINE_STATIC_LOCAL(HashSet<AtomicStringImpl*>, tagList, ());
+    DEFINE_STATIC_LOCAL(HashSet<StringImpl*>, tagList, ());
     if (tagList.isEmpty()) {
         QualifiedName** tags = HTMLNames::getHTMLTags();
         for (size_t i = 0; i < HTMLNames::HTMLTagsCount; i++) {
             if (*tags[i] == bgsoundTag
                 || *tags[i] == commandTag
                 || *tags[i] == detailsTag
                 || *tags[i] == figcaptionTag
                 || *tags[i] == figureTag
                 || *tags[i] == summaryTag
                 || *tags[i] == trackTag) {
@@ skipping 95 matching lines @@
     encoding.appendData(name(), value);
     return true;
 }
 
 HTMLFormElement* HTMLObjectElement::virtualForm() const
 {
     return FormAssociatedElement::form();
 }
 
 }