Re-factor network_event_log

ash/system/chromeos/network/network_state_notifier.cc

Index: ash/system/chromeos/network/network_state_notifier.cc
diff --git a/ash/system/chromeos/network/network_state_notifier.cc b/ash/system/chromeos/network/network_state_notifier.cc
index da4dec0ea6b81ade77f1b74b3d769edb86b1817d..1805143b1830003255a4676f22ba25b8b749d481 100644
--- a/ash/system/chromeos/network/network_state_notifier.cc
+++ b/ash/system/chromeos/network/network_state_notifier.cc
@@ -24,8 +24,6 @@ using chromeos::NetworkStateHandler;
 
 namespace {
 
-const char kLogModule[] = "NetworkStateNotifier";
-
 const int kMinTimeBetweenOutOfCreditsNotifySeconds = 10 * 60;
 
 ash::NetworkObserver::NetworkType GetAshNetworkType(
@@ -158,8 +156,7 @@ void NetworkStateNotifier::NetworkConnectionStateChanged(
   if (network->path() != handler->connecting_network())
     return;  // Only show notifications for explicitly connected networks
 
-  chromeos::network_event_log::AddEntry(
-      kLogModule, "ConnectionFailure", network->path());
+  NET_LOG_EVENT("ConnectionFailure", network->path());
 
   std::vector<string16> no_links;
   ash::NetworkObserver::NetworkType network_type = GetAshNetworkType(network);