Handle webuis when using the network service.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index ff488741db1997fee661106571a7f1408ec9f566..611452f64bdff9c02dd9bd3e82043502d71c0e3b 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -4489,6 +4489,8 @@ void RenderFrameImpl::WillSendRequest(blink::WebURLRequest& request) {
     }
   }
 
+  extra_data->set_url_loader_factory_override(url_loader_factory_.get());
+
   request.SetExtraData(extra_data);
 
   if (request.GetPreviewsState() == WebURLRequest::kPreviewsUnspecified) {