return CallChildren(SetChildDefaultCharacterSet, (void*) &aDefaultCharacterSet);
CallChildren(SetChildDefaultCharacterSet, (void*) &aDefaultCharacterSet); return NS_OK;
DocumentViewerImpl::SetDefaultCharacterSet(const nsACString& aDefaultCharacterSet){  mDefaultCharacterSet = aDefaultCharacterSet;  // this does a copy of aDefaultCharacterSet  // now set the default char set on all children of mContainer  return CallChildren(SetChildDefaultCharacterSet,                      (void*) &aDefaultCharacterSet);}