[Extensions] Simplify EventFilteringInfo

chrome/browser/extensions/api/mdns/mdns_api.cc

Index: chrome/browser/extensions/api/mdns/mdns_api.cc
diff --git a/chrome/browser/extensions/api/mdns/mdns_api.cc b/chrome/browser/extensions/api/mdns/mdns_api.cc
index 854b56ddda3177ab93d0673811f11c7a0ad31cc8..9d210dae43bfde943b259bd8c18e10d7cadaa2b9 100644
--- a/chrome/browser/extensions/api/mdns/mdns_api.cc
+++ b/chrome/browser/extensions/api/mdns/mdns_api.cc
@@ -177,7 +177,7 @@ void MDnsAPI::OnDnsSdEvent(const std::string& service_type,
   auto event = base::MakeUnique<Event>(events::MDNS_ON_SERVICE_LIST,
                                        mdns::OnServiceList::kEventName,
                                        std::move(results), browser_context_);
-  event->filter_info.SetServiceType(service_type);
+  event->filter_info.service_type = service_type;
 
   // TODO(justinlin): To avoid having listeners without filters getting all
   // events, modify API to have this event require filters.