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

Source/modules/filesystem/FileEntrySync.h

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * 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 FileEntrySync_h
 #define FileEntrySync_h
 
+#include "heap/Handle.h"
 #include "modules/filesystem/EntrySync.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class ExceptionState;
 class File;
 class FileWriterSync;
 
 class FileEntrySync FINAL : public EntrySync {
 public:
     static PassRefPtr<FileEntrySync> create(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     {
         return adoptRef(new FileEntrySync(fileSystem, fullPath));
     }
 
     virtual bool isFile() const OVERRIDE { return true; }
 
-    PassRefPtr<File> file(ExceptionState&);
+    PassRefPtrWillBeRawPtr<File> file(ExceptionState&);
     PassRefPtr<FileWriterSync> createWriter(ExceptionState&);
 
 private:
     FileEntrySync(PassRefPtr<DOMFileSystemBase>, const String& fullPath);
 };
 
 DEFINE_TYPE_CASTS(FileEntrySync, EntrySync, entry, entry->isFile(), entry.isFile());
 
 }
 
 #endif // FileEntrySync_h