Link GCM heartbeat with wake on wifi preference

components/gcm_driver/gcm_driver_desktop.h

 // 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.
 
 #ifndef COMPONENTS_GCM_DRIVER_GCM_DRIVER_DESKTOP_H_
 #define COMPONENTS_GCM_DRIVER_GCM_DRIVER_DESKTOP_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 65 matching lines @@
   void GetGCMStatistics(const GetGCMStatisticsCallback& callback,
                         bool clear_logs) override;
   void SetGCMRecording(const GetGCMStatisticsCallback& callback,
                        bool recording) override;
   void SetAccountTokens(
       const std::vector<GCMClient::AccountTokenInfo>& account_tokens) override;
   void UpdateAccountMapping(const AccountMapping& account_mapping) override;
   void RemoveAccountMapping(const std::string& account_id) override;
   base::Time GetLastTokenFetchTime() override;
   void SetLastTokenFetchTime(const base::Time& time) override;
+  void WakeFromSuspendForHeartbeat(bool wake) override;
 
   // Exposed for testing purpose.
   bool gcm_enabled() const { return gcm_enabled_; }
   GCMChannelStatusSyncer* gcm_channel_status_syncer_for_testing() {
     return gcm_channel_status_syncer_.get();
   }
 
  protected:
   // GCMDriver implementation:
   GCMClient::Result EnsureStarted() override;
@@ skipping 60 matching lines @@
   scoped_ptr<GCMAccountMapper> account_mapper_;
 
   // Time of last token fetching.
   base::Time last_token_fetch_time_;
 
   scoped_refptr<base::SequencedTaskRunner> ui_thread_;
   scoped_refptr<base::SequencedTaskRunner> io_thread_;
 
   scoped_ptr<GCMDelayedTaskController> delayed_task_controller_;
 
+  // Whether the HeartbeatManager should try to wake the system from suspend for
+  // sending heartbeat messages.
+  bool wake_from_suspend_enabled_;
+
   // For all the work occurring on the IO thread. Must be destroyed on the IO
   // thread.
   scoped_ptr<IOWorker> io_worker_;
 
   // Callback for GetGCMStatistics.
   GetGCMStatisticsCallback request_gcm_statistics_callback_;
 
   // Used to pass a weak pointer to the IO worker.
   base::WeakPtrFactory<GCMDriverDesktop> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMDriverDesktop);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_GCM_DRIVER_DESKTOP_H_