Re-factor network_event_log

chromeos/network/network_state_handler.h

 // Copyright (c) 2012 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 CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_H_
 #define CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 187 matching lines @@
       const std::string& service_path,
       const std::string& key,
       const base::Value& value) OVERRIDE;
 
   // Called by ShillPropertyHandler when a watched device property changes.
   virtual void UpdateDeviceProperty(
       const std::string& device_path,
       const std::string& key,
       const base::Value& value) OVERRIDE;
 
-  // Sends NetworkManagerChanged() to observers.
-  virtual void ManagerPropertyChanged() OVERRIDE;
+  // Sends NetworkManagerChanged() to observers and logs an event.
+  virtual void NotifyManagerPropertyChanged() OVERRIDE;
 
   // Called by |shill_property_handler_| when the service or device list has
   // changed and all entries have been updated. This updates the list and
   // notifies observers. If |type| == TYPE_NETWORK this also calls
   // CheckDefaultNetworkChanged().
   virtual void ManagedStateListChanged(
       ManagedState::ManagedType type) OVERRIDE;
 
   // Called in Initialize(). Called explicitly by tests after adding
   // test observers.
@@ skipping 57 matching lines @@
 
   // Callbacks to run when a scan for the technology type completes.
   ScanCompleteCallbackMap scan_complete_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkStateHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_H_