Fix flashing pod.

chrome/browser/chromeos/login/existing_user_controller.cc

Index: chrome/browser/chromeos/login/existing_user_controller.cc
diff --git a/chrome/browser/chromeos/login/existing_user_controller.cc b/chrome/browser/chromeos/login/existing_user_controller.cc
index 5b22b410fd7ebff7f5136aa0aac51d21ecd3dc8b..3378e9979d479d658dd8bf65be5201b7e9fa8fef 100644
--- a/chrome/browser/chromeos/login/existing_user_controller.cc
+++ b/chrome/browser/chromeos/login/existing_user_controller.cc
@@ -722,11 +722,12 @@ void ExistingUserController::OnOnlineChecked(const std::string& username,
 // ExistingUserController, private:
 
 void ExistingUserController::DeviceSettingsChanged() {
-  if (host_ != NULL) {
+  // If login was already completed, we should avoid any signin screen
+  // transitions, see http://crbug.com/461604 for example.
+  if (host_ != NULL && !login_display_->is_signin_completed()) {
     // Signed settings or user list changed. Notify views and update them.
     UpdateLoginDisplay(user_manager::UserManager::Get()->GetUsers());
     ConfigurePublicSessionAutoLogin();
-    return;
   }
 }