Oilpan: add transition types to FileSystem APIs.

Source/modules/filesystem/DirectoryReader.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 20 matching lines @@
 #include "config.h"
 #include "modules/filesystem/DirectoryReader.h"
 
 #include "core/fileapi/FileError.h"
 #include "modules/filesystem/EntriesCallback.h"
 #include "modules/filesystem/Entry.h"
 #include "modules/filesystem/ErrorCallback.h"
 
 namespace WebCore {
 
-DirectoryReader::DirectoryReader(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
+DirectoryReader::DirectoryReader(PassRefPtrWillBeRawPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     : DirectoryReaderBase(fileSystem, fullPath)
 {
     ScriptWrappable::init(this);
 }
 
 void DirectoryReader::readEntries(PassOwnPtr<EntriesCallback> entriesCallback, PassOwnPtr<ErrorCallback> errorCallback)
 {
     if (!m_hasMoreEntries) {
         filesystem()->scheduleCallback(entriesCallback, EntryVector());
         return;
     }
     filesystem()->readDirectory(this, m_fullPath, entriesCallback, errorCallback);
 }
 
 }