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

content/browser/service_worker/service_worker_context_core.cc

Index: content/browser/service_worker/service_worker_context_core.cc
diff --git a/content/browser/service_worker/service_worker_context_core.cc b/content/browser/service_worker/service_worker_context_core.cc
index 1cc9387adfce4de9033d13bce069f9f87863d014..3f5deb6cb7fd76b48b0ab99201aa9819d82c1841 100644
--- a/content/browser/service_worker/service_worker_context_core.cc
+++ b/content/browser/service_worker/service_worker_context_core.cc
@@ -501,6 +501,15 @@ void ServiceWorkerContextCore::OnVersionStateChanged(
                          version->version_id(), version->status());
 }
 
+void ServiceWorkerContextCore::OnVersionUpdateTimeSet(
+    ServiceWorkerVersion* version) {
+  if (!observer_list_.get())
+    return;
+  observer_list_->Notify(FROM_HERE,
+                         &ServiceWorkerContextObserver::OnVersionUpdateTimeSet,
+                         version->version_id(), version->update_time());
+}
+
 void ServiceWorkerContextCore::OnErrorReported(
     ServiceWorkerVersion* version,
     const base::string16& error_message,