NS_IMPL_THREADSAFE_ISUPPORTS3(nsChromeRegistry, nsIChromeRegistry, nsIObserver, nsISupportsWeakReference);
NS_IMPL_ISUPPORTS1(nsChromeRegistry, nsIChromeRegistry)
NS_IMPL_THREADSAFE_ISUPPORTS3(nsChromeRegistry, nsIChromeRegistry, nsIObserver, nsISupportsWeakReference);