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

content/browser/service_worker/service_worker_context_watcher.cc

 // Copyright 2015 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_context_watcher.h"
 
 #include "base/bind.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "content/browser/service_worker/service_worker_context_observer.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
@@ skipping 192 matching lines @@
                                                   int thread_id,
                                                   const ErrorInfo& info) {
   int64 registration_id = kInvalidServiceWorkerRegistrationId;
   if (ServiceWorkerVersionInfo* version = version_info_map_.get(version_id))
     registration_id = version->registration_id;
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(error_callback_, registration_id, version_id, info));
 }
 
+void ServiceWorkerContextWatcher::OnVersionUpdateTimeSet(
+    int64 version_id,
+    base::Time update_time) {
+  ServiceWorkerVersionInfo* version = version_info_map_.get(version_id);
+  DCHECK(version);
+  if (version->update_time == update_time)
+    return;
+  version->update_time = update_time;
+  SendVersionInfo(*version);
+}
+
 void ServiceWorkerContextWatcher::OnRegistrationStored(int64 registration_id,
                                                        const GURL& pattern) {
   SendRegistrationInfo(registration_id, pattern,
                        ServiceWorkerRegistrationInfo::IS_NOT_DELETED);
 }
 
 void ServiceWorkerContextWatcher::OnRegistrationDeleted(int64 registration_id,
                                                         const GURL& pattern) {
   SendRegistrationInfo(registration_id, pattern,
                        ServiceWorkerRegistrationInfo::IS_DELETED);
 }
 
 }  // namespace content