Oilpan: move core/fileapi to oilpan's heap.

Source/core/html/DOMFormData.h

Index: Source/core/html/DOMFormData.h
diff --git a/Source/core/html/DOMFormData.h b/Source/core/html/DOMFormData.h
index c522b72a0c87ecb3804208915594c170d6ed7f27..25bd56a4fb9c5ae955cfbe3f28563a1114eb32b7 100644
--- a/Source/core/html/DOMFormData.h
+++ b/Source/core/html/DOMFormData.h
@@ -32,6 +32,7 @@
 #define DOMFormData_h
 
 #include "core/html/FormDataList.h"
+#include "heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
@@ -45,14 +46,23 @@ namespace WebCore {
 class Blob;
 class HTMLFormElement;
 
-class DOMFormData : public FormDataList, public ScriptWrappable, public RefCounted<DOMFormData> {
+class DOMFormData : public RefCountedWillBeGarbageCollectedFinalized<DOMFormData>, public FormDataList, public ScriptWrappable {
 public:
-    static PassRefPtr<DOMFormData> create(HTMLFormElement* form) { return adoptRef(new DOMFormData(form)); }
-    static PassRefPtr<DOMFormData> create(const WTF::TextEncoding& encoding) { return adoptRef(new DOMFormData(encoding)); }
+    static PassRefPtrWillBeRawPtr<DOMFormData> create(HTMLFormElement* form)
+    {
+        return adoptRefWillBeNoop(new DOMFormData(form));
+    }
+
+    static PassRefPtrWillBeRawPtr<DOMFormData> create(const WTF::TextEncoding& encoding)
+    {
+        return adoptRefWillBeNoop(new DOMFormData(encoding));
+    }
 
     void append(const String& name, const String& value);
     void append(const String& name, Blob*, const String& filename = String());
 
+    void trace(Visitor*) { }
+
 private:
     explicit DOMFormData(const WTF::TextEncoding&);
     explicit DOMFormData(HTMLFormElement*);