Remove AtomicStringImpl.

Source/core/html/FormController.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010, 2011, 2012 Google 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef FormController_h
 #define FormController_h
 
 #include "core/dom/CheckedRadioButtons.h"
 #include "wtf/Forward.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/Vector.h"
-#include "wtf/text/WTFString.h"
+#include "wtf/text/AtomicStringHash.h"
 
 namespace WebCore {
 
 class FormAssociatedElement;
 class FormKeyGenerator;
 class HTMLFormControlElementWithState;
 class HTMLFormElement;
 class SavedFormState;
 
 class FormControlState {
@@ skipping 49 matching lines @@
     // This should be callled only by Document::setStateForNewFormElements().
     void setStateForNewFormElements(const Vector<String>&);
     void willDeleteForm(HTMLFormElement*);
     void restoreControlStateFor(HTMLFormControlElementWithState&);
     void restoreControlStateIn(HTMLFormElement&);
 
     static Vector<String> getReferencedFilePaths(const Vector<String>& stateVector);
 
 private:
     typedef ListHashSet<RefPtr<HTMLFormControlElementWithState>, 64> FormElementListHashSet;
-    typedef HashMap<RefPtr<AtomicStringImpl>, OwnPtr<SavedFormState> > SavedFormStateMap;
+    typedef HashMap<AtomicString, OwnPtr<SavedFormState> > SavedFormStateMap;
 
     FormController();
     static PassOwnPtr<SavedFormStateMap> createSavedFormStateMap(const FormElementListHashSet&);
     FormControlState takeStateForFormElement(const HTMLFormControlElementWithState&);
     static void formStatesFromStateVector(const Vector<String>&, SavedFormStateMap&);
 
     CheckedRadioButtons m_checkedRadioButtons;
     FormElementListHashSet m_formElementsWithState;
     SavedFormStateMap m_savedFormStateMap;
     OwnPtr<FormKeyGenerator> m_formKeyGenerator;
 };
 
 } // namespace WebCore
 #endif