Set up the infrastructure for Extension event metrics.

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/mdns/mdns_api.h"
 
 #include <vector>
 
 #include "base/lazy_instance.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 127 matching lines @@
     linked_ptr<mdns::MDnsService> mdns_service =
         make_linked_ptr(new mdns::MDnsService);
     mdns_service->service_name = (*it).service_name;
     mdns_service->service_host_port = (*it).service_host_port;
     mdns_service->ip_address = (*it).ip_address;
     mdns_service->service_data = (*it).service_data;
     args.push_back(mdns_service);
   }
 
   scoped_ptr<base::ListValue> results = mdns::OnServiceList::Create(args);
-  scoped_ptr<Event> event(
-      new Event(mdns::OnServiceList::kEventName, results.Pass()));
+  scoped_ptr<Event> event(new Event(
+      events::UNKNOWN, mdns::OnServiceList::kEventName, results.Pass()));
   event->restrict_to_browser_context = browser_context_;
   event->filter_info.SetServiceType(service_type);
 
   // TODO(justinlin): To avoid having listeners without filters getting all
   // events, modify API to have this event require filters.
   // TODO(reddaly): If event isn't on whitelist, ensure it does not get
   // broadcast to extensions.
   extensions::EventRouter::Get(browser_context_)->BroadcastEvent(event.Pass());
 }
 
@@ skipping 57 matching lines @@
     if (!rvh)
       continue;
     rvh->Send(new ExtensionMsg_AddMessageToConsole(
         rvh->GetRoutingID(),
         level,
         logged_message));
   }
 }
 
 }  // namespace extensions