Oilpan: Prepare to move HTMLFormElement, HTMLFormElement::PastNamesMap, FormKeyGenerator, and FormS…

Source/core/loader/FormState.h

 /*
  * Copyright (C) 2006, 2009 Apple 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef FormState_h
 #define FormState_h
 
+#include "platform/heap/Handle.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
     class Document;
     class HTMLFormElement;
 
     enum FormSubmissionTrigger {
         SubmittedByJavaScript,
         NotSubmittedByJavaScript
     };
 
-    class FormState : public RefCounted<FormState> {
+    class FormState FINAL : public RefCountedWillBeGarbageCollected<FormState> {
     public:
-        static PassRefPtr<FormState> create(HTMLFormElement&, FormSubmissionTrigger);
+        static PassRefPtrWillBeRawPtr<FormState> create(HTMLFormElement&, FormSubmissionTrigger);
+        void trace(Visitor*);
 
         HTMLFormElement* form() const { return m_form.get(); }
         Document* sourceDocument() const { return m_sourceDocument.get(); }
         FormSubmissionTrigger formSubmissionTrigger() const { return m_formSubmissionTrigger; }
 
     private:
         FormState(HTMLFormElement&, FormSubmissionTrigger);
 
-        RefPtr<HTMLFormElement> m_form;
-        RefPtr<Document> m_sourceDocument;
+        RefPtrWillBeMember<HTMLFormElement> m_form;
+        RefPtrWillBeMember<Document> m_sourceDocument;
         FormSubmissionTrigger m_formSubmissionTrigger;
     };
 
 }
 
 #endif // FormState_h