Bootstrapping: Send meaningful error code/message from Slave to Master

chrome/browser/chromeos/login/screens/network_screen.cc

Index: chrome/browser/chromeos/login/screens/network_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/network_screen.cc b/chrome/browser/chromeos/login/screens/network_screen.cc
index fdc73f2b828ddb5536548bbdca4bf778b23a24a8..1d78fd4b1c2ff55d27411ba49c795dd3b4aaf742 100644
--- a/chrome/browser/chromeos/login/screens/network_screen.cc
+++ b/chrome/browser/chromeos/login/screens/network_screen.cc
@@ -155,9 +155,9 @@ void NetworkScreen::GetConnectedWifiNetwork(std::string* out_onc_spec) {
 void NetworkScreen::CreateAndConnectNetworkFromOnc(
     const std::string& onc_spec,
     const base::Closure& success_callback,
-    const base::Closure& failed_callback) {
+    const network_handler::ErrorCallback& error_callback) {
   network_state_helper_->CreateAndConnectNetworkFromOnc(
-      onc_spec, success_callback, failed_callback);
+      onc_spec, success_callback, error_callback);
 }
 
 void NetworkScreen::AddObserver(Observer* observer) {