cros: Hide banner on NeedsDircryptoMigration call failure

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

Index: chrome/browser/chromeos/login/screens/user_selection_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/user_selection_screen.cc b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
index b92c4402f2f8a62512201d50dadab7b085913f9c..0933487f43b10b785943bb5795f53f86b7223fd3 100644
--- a/chrome/browser/chromeos/login/screens/user_selection_screen.cc
+++ b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
@@ -200,6 +200,9 @@ class UserSelectionScreen::DircryptoMigrationChecker {
       bool needs_migration) {
     if (call_status != DBUS_METHOD_CALL_SUCCESS) {
       LOG(ERROR) << "Failed to call cryptohome NeedsDircryptoMigration.";
+      // Hide the banner to avoid confusions in http://crbug.com/721948.

[achuithb, 2017/05/15 21:33:38]

s/confusions/confusion

[xiyuan, 2017/05/15 21:39:00]

Done.

+      // Cache is not updated so that cryptohome call will still be attempted.
+      UpdateUI(account_id, false);
       return;
     }