Template methods on Timer classes instead of the classes themselves.

net/http/http_response_body_drainer.h

Index: net/http/http_response_body_drainer.h
diff --git a/net/http/http_response_body_drainer.h b/net/http/http_response_body_drainer.h
index a4255d0dea957ad4b58a4a73e625dc84b660767b..33368225be6dcb47b63525826d289eaa80d5a6ec 100644
--- a/net/http/http_response_body_drainer.h
+++ b/net/http/http_response_body_drainer.h
@@ -56,7 +56,7 @@ class NET_EXPORT_PRIVATE HttpResponseBodyDrainer {
   State next_state_;
   int total_read_;
   CompletionCallback user_callback_;
-  base::OneShotTimer<HttpResponseBodyDrainer> timer_;
+  base::OneShotTimer timer_;
   HttpNetworkSession* session_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpResponseBodyDrainer);