Add some additional network debugging code

chromeos/network/network_state_handler.cc

Index: chromeos/network/network_state_handler.cc
diff --git a/chromeos/network/network_state_handler.cc b/chromeos/network/network_state_handler.cc
index 863e20f75ee5109ad4c2d2504341dc4861e31a0a..a0789110b7d477d725a36c6127edd1ccb1a3b988 100644
--- a/chromeos/network/network_state_handler.cc
+++ b/chromeos/network/network_state_handler.cc
@@ -71,6 +71,13 @@ std::string ValueAsString(const base::Value& value) {
   return "";
 }
 
+bool ConnectionStateChanged(chromeos::NetworkState* network,
+                            const std::string& prev_connection_state) {
+  return (network->connection_state() != prev_connection_state) &&
+         (network->connection_state() != flimflam::kStateIdle ||
+          !prev_connection_state.empty());
+}
+
 }  // namespace
 
 namespace chromeos {
@@ -408,7 +415,7 @@ void NetworkStateHandler::UpdateManagedStateProperties(
     NetworkState* network = managed->AsNetworkState();
     DCHECK(network);
     // Signal connection state changed after all properties have been updated.
-    if (network->connection_state() != prev_connection_state)
+    if (ConnectionStateChanged(network, prev_connection_state))
       OnNetworkConnectionStateChanged(network);
     NetworkPropertiesUpdated(network);
   }
@@ -431,7 +438,7 @@ void NetworkStateHandler::UpdateNetworkServiceProperty(
     detail += " = " + vstr;
   network_event_log::AddEntry(kLogModule, "NetworkPropertyUpdated", detail);
 
-  if (network->connection_state() != prev_connection_state) {
+  if (ConnectionStateChanged(network, prev_connection_state)) {
     OnNetworkConnectionStateChanged(network);
   } else if (network->path() == default_network_path_ &&
            key != flimflam::kSignalStrengthProperty) {