Oilpan: add transition types to FileSystem APIs.

Source/modules/filesystem/DirectoryEntrySync.cpp

Index: Source/modules/filesystem/DirectoryEntrySync.cpp
diff --git a/Source/modules/filesystem/DirectoryEntrySync.cpp b/Source/modules/filesystem/DirectoryEntrySync.cpp
index 678bbbf3e33a391c10bb8ea584981ff45747c7be..36668332fac4b6b93f02a918f3da20c3a2359b7f 100644
--- a/Source/modules/filesystem/DirectoryEntrySync.cpp
+++ b/Source/modules/filesystem/DirectoryEntrySync.cpp
@@ -40,18 +40,18 @@
 
 namespace WebCore {
 
-DirectoryEntrySync::DirectoryEntrySync(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
+DirectoryEntrySync::DirectoryEntrySync(PassRefPtrWillBeRawPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     : EntrySync(fileSystem, fullPath)
 {
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<DirectoryReaderSync> DirectoryEntrySync::createReader()
+PassRefPtrWillBeRawPtr<DirectoryReaderSync> DirectoryEntrySync::createReader()
 {
     return DirectoryReaderSync::create(m_fileSystem, m_fullPath);
 }
 
-PassRefPtr<FileEntrySync> DirectoryEntrySync::getFile(const String& path, const Dictionary& options, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<FileEntrySync> DirectoryEntrySync::getFile(const String& path, const Dictionary& options, ExceptionState& exceptionState)
 {
     FileSystemFlags flags(options);
     EntrySyncCallbackHelper helper;
@@ -59,7 +59,7 @@ PassRefPtr<FileEntrySync> DirectoryEntrySync::getFile(const String& path, const
     return static_pointer_cast<FileEntrySync>(helper.getResult(exceptionState));
 }
 
-PassRefPtr<DirectoryEntrySync> DirectoryEntrySync::getDirectory(const String& path, const Dictionary& options, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<DirectoryEntrySync> DirectoryEntrySync::getDirectory(const String& path, const Dictionary& options, ExceptionState& exceptionState)
 {
     FileSystemFlags flags(options);
     EntrySyncCallbackHelper helper;