Add DevicePropertiesUpdated to NetworkStateHandlerObserver

chromeos/network/network_state_handler_observer.h

Index: chromeos/network/network_state_handler_observer.h
diff --git a/chromeos/network/network_state_handler_observer.h b/chromeos/network/network_state_handler_observer.h
index 63910c42429b1b1005ea840ddda800b6cf54348a..bcf3275f324a4b0148d5fb62e2a04db78f89a8ed 100644
--- a/chromeos/network/network_state_handler_observer.h
+++ b/chromeos/network/network_state_handler_observer.h
@@ -13,6 +13,7 @@
 
 namespace chromeos {
 
+class DeviceState;
 class NetworkState;
 
 // Observer class for all network state changes, including changes to
@@ -44,6 +45,9 @@ class CHROMEOS_EXPORT NetworkStateHandlerObserver {
   // wifi strength.
   virtual void NetworkPropertiesUpdated(const NetworkState* network);
 
+  // One or more properties of |device| have been updated.
+  virtual void DevicePropertiesUpdated(const DeviceState* device);
+
   // Called just before NetworkStateHandler is destroyed so that observers
   // can safely stop observing.
   virtual void IsShuttingDown();