### Preflight Checklist

* [x] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x] I have searched the issue tracker for an issue that matches the one I want to file, without success.

### Issue Details

* **Electron Version:**
* 9.0.0, 9.2.0, 9.2.1 0 All broken

* **Operating System:**
  * Windows 10 (1809)
* **Last Known Working Electron version:**
  * 8.5.0

### Expected Behavior
When requesting url's and having a socket connect, when it is rejected with proxy authentication required, consistently try again with the proxy authentication credentials.

### Actual Behavior
See logs - good and bad.
In the good logs, electron always makes a 2nd socket request with the proxy authentication headers and succeeds. In the bad logs, electron does not make a 2nd socket request.
Note that for the first socket request on a web page, it works, but when a second socket is opened to make requests it seems to fail.

### To Reproduce
Be behind a NTLM proxy that requires authentication for a domain
Visit a website that makes multiple requests so that multiple sockets are opened.

shell/browser/net/proxying_url_loader_factory.cc
UpdateRequestInfo();
  RestartInternal();
}
void ProxyingURLLoaderFactory::InProgressRequest::UpdateRequestInfo() {
  
  
  
  
  
  network::ResourceRequest request_for_info = request_;
  request_for_info.request_initiator = original_initiator_;
  info_.emplace(extensions::WebRequestInfoInitParams(
      request_id_, factory_->render_process_id_, frame_routing_id_,
      factory_->navigation_ui_data_ ? factory_->navigation_ui_data_->DeepCopy()
                                    : nullptr,
      view_routing_id_, request_for_info, false,
      !(options_ & network::mojom::kURLLoadOptionSynchronous),
      factory_->IsForServiceWorkerScript(), factory_->navigation_id_,
      ukm::kInvalidSourceIdObj));
  current_request_uses_header_client_ =
      factory_->url_loader_header_client_receiver_.is_bound() &&
      (for_cors_preflight_ || network_service_request_id_ != 0) &&
      has_any_extra_headers_listeners_;
}
void ProxyingURLLoaderFactory::InProgressRequest::RestartInternal() {