feat: migrate webRequest module to NetworkService (Part 7) (#19820)

* fix: gin treats Function as Dictionary when doing convertions

* fix: check if listener exists

* fix: listener callback should be executed in next tick

* feat: make InProgressRequest work

* test: re-enable protocol test that relies on webRequest

* chore: merge conditions

shell/browser/api/atom_api_web_request_ns.h

@@ -57,6 +57,7 @@ class WebRequestNS : public gin::Wrappable<WebRequestNS>, public WebRequestAPI {
   ~WebRequestNS() override;
 
   // WebRequestAPI:
+  bool HasListener() const override;
   int OnBeforeRequest(extensions::WebRequestInfo* info,
                       const network::ResourceRequest& request,
                       net::CompletionOnceCallback callback,