Service Worker: Remove legacy code for resolving register() to a version

content/browser/service_worker/service_worker_dispatcher_host.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 "content/browser/service_worker/service_worker_dispatcher_host.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/message_port_message_filter.h"
@@ skipping 459 matching lines @@
       registration->waiting_version());
   attrs->active = handle->CreateServiceWorkerHandleAndPass(
       registration->active_version());
 }
 
 void ServiceWorkerDispatcherHost::RegistrationComplete(
     int thread_id,
     int provider_id,
     int request_id,
     ServiceWorkerStatusCode status,
-    int64 registration_id,
-    int64 version_id) {
+    int64 registration_id) {
   if (!GetContext())
     return;
 
   if (status != SERVICE_WORKER_OK) {
     SendRegistrationError(thread_id, request_id, status);
     return;
   }
 
   ServiceWorkerRegistration* registration =
       GetContext()->GetLiveRegistration(registration_id);
   DCHECK(registration);
 
   ServiceWorkerRegistrationObjectInfo info;
   ServiceWorkerVersionAttributes attrs;
   GetRegistrationObjectInfoAndVersionAttributes(
       provider_id, registration, &info, &attrs);
 
   Send(new ServiceWorkerMsg_ServiceWorkerRegistered(
       thread_id, request_id, info, attrs));
-  TRACE_EVENT_ASYNC_END2("ServiceWorker",
+  TRACE_EVENT_ASYNC_END1("ServiceWorker",
                          "ServiceWorkerDispatcherHost::RegisterServiceWorker",
                          request_id,
-                         "Registration ID", registration_id,
-                         "Version ID", version_id);
+                         "Registration ID",
+                         registration_id);
 }
 
 void ServiceWorkerDispatcherHost::OnWorkerReadyForInspection(
     int embedded_worker_id) {
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerDispatcherHost::OnWorkerReadyForInspection");
   if (!GetContext())
     return;
   EmbeddedWorkerRegistry* registry = GetContext()->embedded_worker_registry();
   if (!registry->CanHandle(embedded_worker_id))
@@ skipping 235 matching lines @@
       status, &error_type, &error_message);
   Send(new ServiceWorkerMsg_ServiceWorkerGetRegistrationError(
       thread_id, request_id, error_type, error_message));
 }
 
 ServiceWorkerContextCore* ServiceWorkerDispatcherHost::GetContext() {
   return context_wrapper_->context();
 }
 
 }  // namespace content