Reauthenticate the user before launching Smart Lock setup app.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
index ddc22157a8dedd7042ea3aab5dbb37da4716cbee..c73af59af1e69757eb3687d4c0a3fbe542fea08e 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc
@@ -1251,10 +1251,10 @@ void SigninScreenHandler::HandleAccountPickerReady() {
   is_account_picker_showing_first_time_ = true;
   gaia_screen_handler_->MaybePreloadAuthExtension();
 
+  ScreenlockBridge::Get()->SetLockHandler(this);
   if (ScreenLocker::default_screen_locker()) {
     ScreenLocker::default_screen_locker()->delegate()->OnLockWebUIReady();
   }
-  ScreenlockBridge::Get()->SetLockHandler(this);
 
   if (delegate_)
     delegate_->OnSigninScreenReady();