Template methods on Timer classes instead of the classes themselves.

content/browser/service_worker/service_worker_version.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_VERSION_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 
 #include <map>
 #include <queue>
 #include <set>
@@ skipping 575 matching lines @@
   ServicePortDispatcherPtr service_port_dispatcher_;
   BackgroundSyncServiceClientPtr background_sync_dispatcher_;
 
   std::set<const ServiceWorkerURLRequestJob*> streaming_url_request_jobs_;
 
   std::map<std::string, ServiceWorkerProviderHost*> controllee_map_;
   // Will be null while shutting down.
   base::WeakPtr<ServiceWorkerContextCore> context_;
   base::ObserverList<Listener> listeners_;
   ServiceWorkerScriptCacheMap script_cache_map_;
-  base::OneShotTimer<ServiceWorkerVersion> update_timer_;
+  base::OneShotTimer update_timer_;
 
   // Starts running in StartWorker and continues until the worker is stopped.
-  base::RepeatingTimer<ServiceWorkerVersion> timeout_timer_;
+  base::RepeatingTimer timeout_timer_;
   // Holds the time the worker last started being considered idle.
   base::TimeTicks idle_time_;
   // Holds the time that the outstanding StartWorker() request started.
   base::TimeTicks start_time_;
   // Holds the time the worker entered STOPPING status.
   base::TimeTicks stop_time_;
   // Holds the time the worker was detected as stale and needs updating. We try
   // to update once the worker stops, but will also update if it stays alive too
   // long.
   base::TimeTicks stale_time_;
@@ skipping 24 matching lines @@
   const bool should_exclude_from_uma_ = false;
 
   base::WeakPtrFactory<ServiceWorkerVersion> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerVersion);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_