[DevTools] Send ServiceWorkerVersion.ScriptLastModified and ScriptResponseTime to DevTools window.

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 <vector>
 
 #include "base/message_loop/message_loop.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
@@ skipping 382 matching lines @@
 
 void ServiceWorkerRegisterJob::OnInstallFinished(
     ServiceWorkerStatusCode status) {
   if (status != SERVICE_WORKER_OK) {
     // "8. If installFailed is true, then:..."
     Complete(status);
     return;
   }
 
   SetPhase(STORE);
-  registration()->set_last_update_check(base::Time::Now());
+  const base::Time now = base::Time::Now();
+  registration()->set_last_update_check(now);
+  registration()->installing_version()->set_update_time(now);

[falken, 2015/03/30 00:46:29]

Update is an operation on registration, not version, so it seems odd to make
update_time a property of versions. You can't update a version; the update
process creates a new version.

If the idea is to store a timestamp for when a version is created, calling it
creation time would make more sense. Can you explain more the desired UI?

   context_->storage()->StoreRegistration(
       registration(),
       new_version(),
       base::Bind(&ServiceWorkerRegisterJob::OnStoreRegistrationComplete,
                  weak_factory_.GetWeakPtr()));
 }
 
 void ServiceWorkerRegisterJob::OnStoreRegistrationComplete(
     ServiceWorkerStatusCode status) {
   if (status != SERVICE_WORKER_OK) {
@@ skipping 146 matching lines @@
     if (host->IsHostToRunningServiceWorker())
       continue;
     if (!ServiceWorkerUtils::ScopeMatches(registration->pattern(),
                                           host->document_url()))
       continue;
     host->AddMatchingRegistration(registration);
   }
 }
 
 }  // namespace content