RenderWidgetHostImpl::GetAllRenderWidgetHosts() {
  std::unique_ptr<RenderWidgetHostIteratorImpl> hosts(
      new RenderWidgetHostIteratorImpl());
  for (auto& it : g_routing_id_widget_map.Get())
    hosts->Add(it.second);

  return std::move(hosts);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.