Revert of [ServiceWorker] Mojofy PushEvent of Service Worker.

content/browser/push_messaging/push_messaging_router.cc

Index: content/browser/push_messaging/push_messaging_router.cc
diff --git a/content/browser/push_messaging/push_messaging_router.cc b/content/browser/push_messaging/push_messaging_router.cc
index c512cff29cfa166a893ed69f4f39cb91bcf3a320..f6ff797ff2540b972d03d8e9a54fe25623969157 100644
--- a/content/browser/push_messaging/push_messaging_router.cc
+++ b/content/browser/push_messaging/push_messaging_router.cc
@@ -123,10 +123,8 @@
                  deliver_message_callback, service_worker_registration),
       base::TimeDelta::FromSeconds(kPushMessageTimeoutSeconds),
       ServiceWorkerVersion::KILL_ON_TIMEOUT);
-
-  service_worker->event_dispatcher()->DispatchPushEvent(
-      payload, base::Bind(&ServiceWorkerVersion::OnSimpleEventFinished,
-                          service_worker, request_id));
+  service_worker->DispatchSimpleEvent<ServiceWorkerHostMsg_PushEventFinished>(
+      request_id, ServiceWorkerMsg_PushEvent(request_id, payload));
 }
 
 // static