NetworkChangeNotifierChromeos: Handle IPConfig property changes on the default network

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 a23076cbfa9a810dfd82f1ec5774c68ce3e32b33..cf4858812fef6ff1e625429d41b3334b5803df3d 100644
--- a/chromeos/network/network_state_handler_observer.h
+++ b/chromeos/network/network_state_handler_observer.h
@@ -33,8 +33,11 @@ class CHROMEOS_EXPORT NetworkStateHandlerObserver {
   // The list of devices changed, or a property changed (e.g. scanning).
   virtual void DeviceListChanged();
 
-  // The default network changed (includes VPNs) or its connection state
-  // changed. |network| will be NULL if there is no longer a default network.
+  // The default network changed (includes VPNs) or one of its properties
+  // changed. This won't be called if the WiFi signal strength property
+  // changes. If you are interested in those events, use

[stevenjb, 2013/03/27 22:18:52]

nit: s/If you are/If (avoid "you" in comments)

[gauravsh, 2013/03/27 23:16:04]

Done.

+  // NetworkPropertiesUpdated() below.
+  // |network| will be NULL if there is no longer a default network.
   virtual void DefaultNetworkChanged(const NetworkState* network);
 
   // The connection state of |network| changed.