Service Worker: set active worker to REDUNDANT when unregistered

content/browser/service_worker/service_worker_storage.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 236 matching lines @@
   ServiceWorkerRegistration* FindInstallingRegistrationForId(
       int64 registration_id);
 
   // Lazy disk_cache getter.
   ServiceWorkerDiskCache* disk_cache();
   void OnDiskCacheInitialized(int rv);
 
   // ServiceWorkerVersion::Listener override
   virtual void OnNoControllees(ServiceWorkerVersion* version) OVERRIDE;
 
-  void SchedulePurgeResources(int64 version_id,
-                              const std::vector<int64>& resources);
+  // Sets the version to redundant and purges its resources. If the version
+  // is controlling a page, defers until the version no longer controls a page.
+  void DecommissionVersion(int64 version_id,

[falken, 2014/07/09 08:47:13]

suggestions on this naming are welcome. My other thought was
MakeVersionRedundant but it sounds like it's copying a worker.

+                           const std::vector<int64>& resources);
+
   void StartPurgingResources(const std::vector<int64>& ids);
   void StartPurgingResources(const ResourceList& resources);
   void ContinuePurgingResources();
   void PurgeResource(int64 id);
   void OnResourcePurged(int64 id, int rv);
 
   // Static cross-thread helpers.
   static void ReadInitialDataFromDB(
       ServiceWorkerDatabase* database,
       scoped_refptr<base::SequencedTaskRunner> original_task_runner,
@@ skipping 71 matching lines @@
   std::map<int64, std::vector<int64> > deleted_version_resource_ids_;
 
   base::WeakPtrFactory<ServiceWorkerStorage> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerStorage);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_STORAGE_H_