Template methods on Timer classes instead of the classes themselves.

net/url_request/url_fetcher_core.h

 // Copyright (c) 2012 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 NET_URL_REQUEST_URL_FETCHER_CORE_H_
 #define NET_URL_REQUEST_URL_FETCHER_CORE_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 308 matching lines @@
   base::TimeDelta backoff_delay_;
 
   // The number of retries that have been attempted due to ERR_NETWORK_CHANGED.
   int num_retries_on_network_changes_;
   // Maximum retries allowed when the request fails with ERR_NETWORK_CHANGED.
   // 0 by default.
   int max_retries_on_network_changes_;
 
   // Timer to poll the progress of uploading for POST and PUT requests.
   // When crbug.com/119629 is fixed, scoped_ptr is not necessary here.
-  scoped_ptr<base::RepeatingTimer<URLFetcherCore> >
-      upload_progress_checker_timer_;
+  scoped_ptr<base::RepeatingTimer> upload_progress_checker_timer_;
   // Number of bytes sent so far.
   int64 current_upload_bytes_;
   // Number of bytes received so far.
   int64 current_response_bytes_;
   // Total expected bytes to receive (-1 if it cannot be determined).
   int64 total_response_bytes_;
 
   // TODO(willchan): Get rid of this after debugging crbug.com/90971.
   base::debug::StackTrace stack_trace_;
 
   static base::LazyInstance<Registry> g_registry;
 
   DISALLOW_COPY_AND_ASSIGN(URLFetcherCore);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_CORE_H_