Use base::OneShotTimer instead of base::Timer(false, false)

extensions/browser/updater/request_queue_impl.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 EXTENSIONS_BROWSER_UPDATER_REQUEST_QUEUE_IMPL_H_
 #define EXTENSIONS_BROWSER_UPDATER_REQUEST_QUEUE_IMPL_H_
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop/message_loop.h"
 #include "extensions/browser/updater/request_queue.h"
 
 namespace extensions {
 
 template <typename T>
 RequestQueue<T>::RequestQueue(
     const net::BackoffEntry::Policy* const backoff_policy,
     const base::Closure& start_request_callback)
     : backoff_policy_(backoff_policy),
-      start_request_callback_(start_request_callback),
-      timer_(false, false) {
-}
+      start_request_callback_(start_request_callback) {}
 
 template <typename T>
 RequestQueue<T>::~RequestQueue() {
 }
 
 template <typename T>
 T* RequestQueue<T>::active_request() {
   return active_request_.get();
 }
 
@@ skipping 109 matching lines @@
 
 // static
 template <typename T>
 bool RequestQueue<T>::CompareRequests(const Request& a, const Request& b) {
   return a.backoff_entry->GetReleaseTime() > b.backoff_entry->GetReleaseTime();
 }
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_UPDATER_REQUEST_QUEUE_IMPL_H_