C++ readability review

components/gcm_driver/gcm_driver_desktop.cc

 // Copyright 2014 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/gcm_driver/gcm_driver_desktop.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/sequenced_task_runner.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "components/gcm_driver/gcm_account_mapper.h"
 #include "components/gcm_driver/gcm_app_handler.h"
 #include "components/gcm_driver/gcm_channel_status_syncer.h"
 #include "components/gcm_driver/gcm_client_factory.h"
 #include "components/gcm_driver/gcm_delayed_task_controller.h"
 #include "components/gcm_driver/system_encryptor.h"
 #include "google_apis/gcm/engine/account_mapping.h"
 #include "net/base/ip_endpoint.h"
 #include "net/url_request/url_request_context_getter.h"
 
 #if defined(OS_CHROMEOS)
-#include "components/timers/alarm_timer.h"
+#include "components/timers/alarm_timer_chromeos.h"
 #endif
 
 namespace gcm {
 
 class GCMDriverDesktop::IOWorker : public GCMClient::Delegate {
  public:
   // Called on UI thread.
   IOWorker(const scoped_refptr<base::SequencedTaskRunner>& ui_thread,
            const scoped_refptr<base::SequencedTaskRunner>& io_thread);
   virtual ~IOWorker();
@@ skipping 298 matching lines @@
   if (gcm_client_.get())
     gcm_client_->SetLastTokenFetchTime(time);
 }
 
 void GCMDriverDesktop::IOWorker::WakeFromSuspendForHeartbeat(bool wake) {
 #if defined(OS_CHROMEOS)
   DCHECK(io_thread_->RunsTasksOnCurrentThread());
 
   scoped_ptr<base::Timer> timer;
   if (wake)
-    timer.reset(new timers::AlarmTimer(true, false));
+    timer.reset(new timers::SimpleAlarmTimer());
   else
     timer.reset(new base::Timer(true, false));
 
   gcm_client_->UpdateHeartbeatTimer(timer.Pass());
 #endif
 }
 
 GCMDriverDesktop::GCMDriverDesktop(
     scoped_ptr<GCMClientFactory> gcm_client_factory,
     const GCMClient::ChromeBuildInfo& chrome_build_info,
@@ skipping 478 matching lines @@
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
 
   // Normally request_gcm_statistics_callback_ would not be null.
   if (!request_gcm_statistics_callback_.is_null())
     request_gcm_statistics_callback_.Run(stats);
   else
     LOG(WARNING) << "request_gcm_statistics_callback_ is NULL.";
 }
 
 }  // namespace gcm