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

Source/modules/filesystem/FileEntrySync.cpp

 /*
  * 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 25 matching lines @@
 #include "modules/filesystem/FileWriterSync.h"
 
 namespace WebCore {
 
 FileEntrySync::FileEntrySync(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     : EntrySync(fileSystem, fullPath)
 {
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<File> FileEntrySync::file(ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<File> FileEntrySync::file(ExceptionState& exceptionState)
 {
     return filesystem()->createFile(this, exceptionState);
 }
 
 PassRefPtr<FileWriterSync> FileEntrySync::createWriter(ExceptionState& exceptionState)
 {
     return filesystem()->createWriter(this, exceptionState);
 }
 
 }