Link GCM heartbeat with wake on wifi preference

chrome/browser/chromeos/net/wake_on_wifi_manager.h

Index: chrome/browser/chromeos/net/wake_on_wifi_manager.h
diff --git a/chrome/browser/chromeos/net/wake_on_wifi_manager.h b/chrome/browser/chromeos/net/wake_on_wifi_manager.h
index bdbe2364d968f1c88ebcd9077ac6984d007efacf..1b68c3c27b50a3765486cc5ccb3ef06179e90f3f 100644
--- a/chrome/browser/chromeos/net/wake_on_wifi_manager.h
+++ b/chrome/browser/chromeos/net/wake_on_wifi_manager.h
@@ -27,6 +27,7 @@ class WakeOnWifiManager : public content::NotificationObserver {
     WAKE_ON_PACKET          = 1,
     WAKE_ON_SSID            = 2,
     WAKE_ON_PACKET_AND_SSID = 3,
+    INVALID                 = 4,
   };
 
   static WakeOnWifiManager* Get();
@@ -47,6 +48,8 @@ class WakeOnWifiManager : public content::NotificationObserver {
   void OnProfileAdded(Profile* profile);
   void OnProfileDestroyed(Profile* profile);
 
+  WakeOnWifiFeature current_feature_;
+
   class WakeOnPacketConnectionObserver;
   base::ScopedPtrHashMap<Profile*, WakeOnPacketConnectionObserver>
       connection_observers_;