Replace misc. network stub flags with more flexible ones

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 c09127146fc830b67bbdf323e555112ed8d3213f..972b6759ea6e205e4fdb7fd5dc1852b376806878 100644
--- a/chromeos/network/network_state_handler.cc
+++ b/chromeos/network/network_state_handler.cc
@@ -191,8 +191,10 @@ const FavoriteState* NetworkStateHandler::DefaultFavoriteNetwork() const {
     return NULL;
   const FavoriteState* default_favorite =
       GetFavoriteState(default_network->path());
-  DCHECK(default_favorite);
-  DCHECK(default_favorite->update_received());
+  DCHECK(default_network->type() != shill::kTypeWifi ||
+         default_favorite) << "No favorite for: " << default_network->path();
+  DCHECK(!default_favorite || default_favorite->update_received())
+      << "No update received for: " << default_network->path();
   return default_favorite;
 }