ServiceWorker: Keep the worker alive until FetchEvent.waitUntil settles

content/browser/service_worker/service_worker_register_job.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_register_job.h"
 
 #include <stdint.h>
 
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 411 matching lines @@
 
 void ServiceWorkerRegisterJob::DispatchInstallEvent() {
   DCHECK_EQ(ServiceWorkerVersion::INSTALLING, new_version()->status())
       << new_version()->status();
   DCHECK_EQ(ServiceWorkerVersion::RUNNING, new_version()->running_status())
       << "Worker stopped too soon after it was started.";
   int request_id = new_version()->StartRequest(
       ServiceWorkerMetrics::EventType::INSTALL,
       base::Bind(&ServiceWorkerRegisterJob::OnInstallFailed,
                  weak_factory_.GetWeakPtr()));
-  new_version()->DispatchEvent<ServiceWorkerHostMsg_InstallEventFinished>(
-      request_id, ServiceWorkerMsg_InstallEvent(request_id),
-      base::Bind(&ServiceWorkerRegisterJob::OnInstallFinished,
-                 weak_factory_.GetWeakPtr()));
+  new_version()
+      ->RegisterRequestCallback<ServiceWorkerHostMsg_InstallEventFinished>(
+          request_id, base::Bind(&ServiceWorkerRegisterJob::OnInstallFinished,
+                                 weak_factory_.GetWeakPtr()));
+  new_version()->DispatchEvent({request_id},
+                               ServiceWorkerMsg_InstallEvent(request_id));
 }
 
 void ServiceWorkerRegisterJob::OnInstallFinished(
     int request_id,
     blink::WebServiceWorkerEventResult result,
     bool has_fetch_handler) {
   new_version()->FinishRequest(
       request_id, result == blink::WebServiceWorkerEventResultCompleted);
 
   ServiceWorkerStatusCode status = SERVICE_WORKER_ERROR_FAILED;
@@ skipping 185 matching lines @@
       new_version()->force_bypass_cache_for_scripts() ||
       registration()->last_update_check().is_null()) {
     registration()->set_last_update_check(base::Time::Now());
 
     if (registration()->has_installed_version())
       context_->storage()->UpdateLastUpdateCheckTime(registration());
   }
 }
 
 }  // namespace content