Oilpan: add transition types to FileSystem APIs.

Source/modules/filesystem/FileEntrySync.cpp

Index: Source/modules/filesystem/FileEntrySync.cpp
diff --git a/Source/modules/filesystem/FileEntrySync.cpp b/Source/modules/filesystem/FileEntrySync.cpp
index 7d7049c2fb960b2cea4aff0efc86facbf7bd4325..569e5f276d68759ad9dd846e30e9684734570751 100644
--- a/Source/modules/filesystem/FileEntrySync.cpp
+++ b/Source/modules/filesystem/FileEntrySync.cpp
@@ -37,7 +37,7 @@
 
 namespace WebCore {
 
-FileEntrySync::FileEntrySync(PassRefPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
+FileEntrySync::FileEntrySync(PassRefPtrWillBeRawPtr<DOMFileSystemBase> fileSystem, const String& fullPath)
     : EntrySync(fileSystem, fullPath)
 {
     ScriptWrappable::init(this);
@@ -48,9 +48,14 @@ PassRefPtrWillBeRawPtr<File> FileEntrySync::file(ExceptionState& exceptionState)
     return filesystem()->createFile(this, exceptionState);
 }
 
-PassRefPtr<FileWriterSync> FileEntrySync::createWriter(ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<FileWriterSync> FileEntrySync::createWriter(ExceptionState& exceptionState)
 {
     return filesystem()->createWriter(this, exceptionState);
 }
 
+void FileEntrySync::trace(Visitor* visitor)
+{
+    EntrySync::trace(visitor);
+}
+
 }