Update installed ServiceWorkers.

content/browser/service_worker/service_worker_job_coordinator.cc

Index: content/browser/service_worker/service_worker_job_coordinator.cc
diff --git a/content/browser/service_worker/service_worker_job_coordinator.cc b/content/browser/service_worker/service_worker_job_coordinator.cc
index 8152b4902721df56d780c8e3ff968701968dbd3d..13e4b4b703ca28e5a47cdaddac99a1a5bb869b78 100644
--- a/content/browser/service_worker/service_worker_job_coordinator.cc
+++ b/content/browser/service_worker/service_worker_job_coordinator.cc
@@ -92,6 +92,13 @@ void ServiceWorkerJobCoordinator::Unregister(
   queued_job->AddCallback(callback);
 }
 
+void ServiceWorkerJobCoordinator::Update(
+    ServiceWorkerRegistration* registration) {
+  job_queues_[registration->pattern()].Push(
+      make_scoped_ptr<ServiceWorkerRegisterJobBase>(
+          new ServiceWorkerRegisterJob(context_, registration)));
+}
+
 void ServiceWorkerJobCoordinator::AbortAll() {
   for (RegistrationJobMap::iterator it = job_queues_.begin();
        it != job_queues_.end(); ++it) {