chromeos networking: move from security to securityclass property

ui/chromeos/network/network_icon.cc

Index: ui/chromeos/network/network_icon.cc
diff --git a/ui/chromeos/network/network_icon.cc b/ui/chromeos/network/network_icon.cc
index c5cddd6f5fc20e768b116aec14bad7048e1174c0..c47a7724fe9dc8a78f4ba6748471b5e9fe493859 100644
--- a/ui/chromeos/network/network_icon.cc
+++ b/ui/chromeos/network/network_icon.cc
@@ -674,7 +674,7 @@ void NetworkIconImpl::GetBadges(const NetworkState* network, Badges* badges) {
 
   const std::string& type = network->type();
   if (type == shill::kTypeWifi) {
-    if (network->security() != shill::kSecurityNone &&
+    if (network->security_class() != shill::kSecurityNone &&
         IconTypeIsDark(icon_type_)) {
       badges->bottom_right = rb.GetImageSkiaNamed(
           IDR_AURA_UBER_TRAY_NETWORK_SECURE_DARK);