Oilpan: add transition types to FileSystem APIs.

Source/modules/filesystem/EntryBase.cpp

 /*
  * Copyright (C) 2011 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/EntryBase.h"
 
 #include "modules/filesystem/DOMFilePath.h"
 #include "modules/filesystem/DOMFileSystemBase.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
-EntryBase::EntryBase(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
+EntryBase::EntryBase(PassRefPtrWillBeRawPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     : m_fileSystem(fileSystem)
     , m_fullPath(fullPath)
     , m_name(DOMFilePath::getName(fullPath))
 {
 }
 
 EntryBase::~EntryBase()
 {
 }
 
 String EntryBase::toURL() const
 {
     // Some filesystem type may not support toURL.
     if (!m_fileSystem->supportsToURL())
         return String();
 
     return m_fileSystem->createFileSystemURL(this).string();
 }
 
+void EntryBase::trace(Visitor* visitor)
+{
+    visitor->trace(m_fileSystem);
+}
+
 } // namespace WebCore