Don't prematurely delete script resources when registration is deleted

content/browser/service_worker/service_worker_version.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_version.h"
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
 #include "base/strings/string16.h"
 #include "content/browser/service_worker/embedded_worker_instance.h"
@@ skipping 369 matching lines @@
     stop_worker_timer_.Stop();
 }
 
 void ServiceWorkerVersion::RemoveControllee(
     ServiceWorkerProviderHost* provider_host) {
   ControlleeMap::iterator found = controllee_map_.find(provider_host);
   DCHECK(found != controllee_map_.end());
   controllee_by_id_.Remove(found->second);
   controllee_map_.erase(found);
   RemoveProcessFromWorker(provider_host->process_id());
-  if (!HasControllee())
+  if (!HasControllee()) {
     ScheduleStopWorker();
-  // TODO(kinuko): Fire NoControllees notification when the # of controllees
-  // reaches 0, so that a new pending version can be activated (which will
-  // deactivate this version).
-  // TODO(michaeln): On no controllees call storage DeleteVersionResources
-  // if this version has been deactivated. Probably storage can listen for
-  // NoControllees for versions that have been deleted.
+    FOR_EACH_OBSERVER(Listener, listeners_, OnNoControllees(this));
+  }
 }
 
 void ServiceWorkerVersion::AddWaitingControllee(
     ServiceWorkerProviderHost* provider_host) {
   AddProcessToWorker(provider_host->process_id());
 }
 
 void ServiceWorkerVersion::RemoveWaitingControllee(
     ServiceWorkerProviderHost* provider_host) {
   RemoveProcessFromWorker(provider_host->process_id());
@@ skipping 248 matching lines @@
     return;
   }
   stop_worker_timer_.Start(
       FROM_HERE, base::TimeDelta::FromSeconds(kStopWorkerDelay),
       base::Bind(&ServiceWorkerVersion::StopWorker,
                  weak_factory_.GetWeakPtr(),
                  base::Bind(&ServiceWorkerUtils::NoOpStatusCallback)));
 }
 
 }  // namespace content