Improve NetworkStateHandler API

chromeos/network/network_state_handler_observer.cc

Index: chromeos/network/network_state_handler_observer.cc
diff --git a/chromeos/network/network_state_handler_observer.cc b/chromeos/network/network_state_handler_observer.cc
index e573683a3aa288dcaef28f28a23a73e25bc6a355..fd9b1b26813dfcd6d8c794ad025862c9cae26fcb 100644
--- a/chromeos/network/network_state_handler_observer.cc
+++ b/chromeos/network/network_state_handler_observer.cc
@@ -22,15 +22,15 @@ void NetworkStateHandlerObserver::NetworkListChanged(
 void NetworkStateHandlerObserver::DeviceListChanged() {
 }
 
-void NetworkStateHandlerObserver::ActiveNetworkChanged(
+void NetworkStateHandlerObserver::DefaultNetworkChanged(
     const NetworkState* network) {
 }
 
-void NetworkStateHandlerObserver::ActiveNetworkStateChanged(
+void NetworkStateHandlerObserver::NetworkStateChanged(
     const NetworkState* network) {
 }
 
-void NetworkStateHandlerObserver::NetworkServiceChanged(
+void NetworkStateHandlerObserver::NetworkPropertyChanged(
     const NetworkState* network) {
 }