Oilpan: add transition types to FileSystem APIs.

Source/web/WebDOMFileSystem.cpp

 /*
  * Copyright (C) 2013 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 46 matching lines @@
 }
 
 WebDOMFileSystem WebDOMFileSystem::create(
     WebFrame* frame,
     WebFileSystemType type,
     const WebString& name,
     const WebURL& rootURL,
     SerializableType serializableType)
 {
     ASSERT(frame && toWebFrameImpl(frame)->frame());
-    RefPtr<DOMFileSystem> domFileSystem = DOMFileSystem::create(toWebFrameImpl(frame)->frame()->document(), name, static_cast<WebCore::FileSystemType>(type), rootURL);
+    RefPtrWillBeRawPtr<DOMFileSystem> domFileSystem = DOMFileSystem::create(toWebFrameImpl(frame)->frame()->document(), name, static_cast<WebCore::FileSystemType>(type), rootURL);
     if (serializableType == SerializableTypeSerializable)
         domFileSystem->makeClonable();
     return WebDOMFileSystem(domFileSystem);
 }
 
 void WebDOMFileSystem::reset()
 {
     m_private.reset();
 }
 
@@ skipping 44 matching lines @@
     EntryType entryType)
 {
     if (!m_private.get())
         return v8::Handle<v8::Value>();
     if (entryType == EntryTypeDirectory)
         return toV8(DirectoryEntry::create(m_private.get(), path), v8::Handle<v8::Object>(), toIsolate(m_private->executionContext()));
     ASSERT(entryType == EntryTypeFile);
     return toV8(FileEntry::create(m_private.get(), path), v8::Handle<v8::Object>(), toIsolate(m_private->executionContext()));
 }
 
-WebDOMFileSystem::WebDOMFileSystem(const WTF::PassRefPtr<DOMFileSystem>& domFileSystem)
+WebDOMFileSystem::WebDOMFileSystem(const PassRefPtrWillBeRawPtr<DOMFileSystem>& domFileSystem)
     : m_private(domFileSystem)
 {
 }
 
-WebDOMFileSystem& WebDOMFileSystem::operator=(const WTF::PassRefPtr<WebCore::DOMFileSystem>& domFileSystem)
+WebDOMFileSystem& WebDOMFileSystem::operator=(const PassRefPtrWillBeRawPtr<WebCore::DOMFileSystem>& domFileSystem)
 {
     m_private = domFileSystem;
     return *this;
 }
 
-WebDOMFileSystem::operator WTF::PassRefPtr<WebCore::DOMFileSystem>() const
-{
-    return m_private.get();
-}
-
 } // namespace blink