Service Worker: Update stale workers

content/browser/service_worker/service_worker_context_core.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_context_core.h"
 
 #include "base/barrier_closure.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_path.h"
@@ skipping 419 matching lines @@
   std::vector<ServiceWorkerVersionInfo> infos;
   for (std::map<int64, ServiceWorkerVersion*>::const_iterator iter =
            live_versions_.begin();
        iter != live_versions_.end();
        ++iter) {
     infos.push_back(iter->second->GetInfo());
   }
   return infos;
 }
 
+void ServiceWorkerContextCore::ProtectVersion(
+    const scoped_refptr<ServiceWorkerVersion>& version) {
+  DCHECK(protected_versions_.find(version->version_id()) ==
+         protected_versions_.end());
+  protected_versions_[version->version_id()] = version;
+}
+
+void ServiceWorkerContextCore::UnprotectVersion(int64 version_id) {
+  DCHECK(protected_versions_.find(version_id) != protected_versions_.end());
+  protected_versions_.erase(version_id);
+}
+
 int ServiceWorkerContextCore::GetNewServiceWorkerHandleId() {
   return next_handle_id_++;
 }
 
 int ServiceWorkerContextCore::GetNewRegistrationHandleId() {
   return next_registration_handle_id_++;
 }
 
 void ServiceWorkerContextCore::ScheduleDeleteAndStartOver() const {
   storage_->Disable();
@@ skipping 125 matching lines @@
   observer_list_->Notify(FROM_HERE,
                          &ServiceWorkerContextObserver::OnControlleeRemoved,
                          version->version_id(), provider_host->client_uuid());
 }
 
 ServiceWorkerProcessManager* ServiceWorkerContextCore::process_manager() {
   return wrapper_->process_manager();
 }
 
 }  // namespace content