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

components/component_updater/timer.cc

 // Copyright 2015 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.
 
 #include "components/component_updater/timer.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 
 namespace component_updater {
 
-Timer::Timer() : timer_(false, false) {
-}
+Timer::Timer() {}
 
 Timer::~Timer() {
   DCHECK(thread_checker_.CalledOnValidThread());
   Stop();
 }
 
 void Timer::Start(base::TimeDelta initial_delay,
                   base::TimeDelta delay,
                   const base::Closure& user_task) {
   DCHECK(thread_checker_.CalledOnValidThread());
@@ skipping 13 matching lines @@
 void Timer::OnDelay() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   user_task_.Run();
 
   timer_.Start(FROM_HERE, delay_,
                base::Bind(&Timer::OnDelay, base::Unretained(this)));
 }
 
 }  // namespace component_updater