Make filesystem objects ScriptWrappable.

Source/modules/filesystem/EntryArraySync.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 29 matching lines @@
     RefPtr<EntryArraySync> entriesSync = adoptRef(new EntryArraySync());
     if (entries) {
         for (unsigned i = 0; i < entries->length(); ++i)
             entriesSync->append(EntrySync::create(entries->item(i)));
     }
     return entriesSync.release();
 }
 
 EntryArraySync::EntryArraySync()
 {
+    ScriptWrappable::init(this);
 }
 
 EntrySync* EntryArraySync::item(unsigned index) const
 {
     if (index >= m_entries.size())
         return 0;
     return m_entries[index].get();
 }
 
 }