if (aIsTopLevel) UnsuppressPainting();
PresShell::Thaw(){  nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(mDocument);  if (domDoc) {    EnumeratePlugins(domDoc, NS_LITERAL_STRING("object"), StartPluginInstance);    EnumeratePlugins(domDoc, NS_LITERAL_STRING("applet"), StartPluginInstance);    EnumeratePlugins(domDoc, NS_LITERAL_STRING("embed"), StartPluginInstance);  }  if (mDocument)    mDocument->EnumerateSubDocuments(ThawSubDocument, nsnull);}