cros: Refactor oobe LoadUsers to include non-serialized user list.

chrome/browser/chromeos/login/signin_screen_controller.cc

Index: chrome/browser/chromeos/login/signin_screen_controller.cc
diff --git a/chrome/browser/chromeos/login/signin_screen_controller.cc b/chrome/browser/chromeos/login/signin_screen_controller.cc
index 4b22d527fd3f4fa1c9c0bb36be6e8615e28ac44a..b8ea0af46dc32d03a6491a113a767e11a74c0ba9 100644
--- a/chrome/browser/chromeos/login/signin_screen_controller.cc
+++ b/chrome/browser/chromeos/login/signin_screen_controller.cc
@@ -49,11 +49,10 @@ SignInScreenController::~SignInScreenController() {
   instance_ = nullptr;
 }
 
-void SignInScreenController::Init(const user_manager::UserList& users,
-                                  bool show_guest) {
+void SignInScreenController::Init(const user_manager::UserList& users) {
   // TODO(antrim) : This dependency should be inverted, screen should ask about
   // users.
-  user_selection_screen_->Init(users, show_guest);
+  user_selection_screen_->Init(users);
 }
 
 void SignInScreenController::OnSigninScreenReady() {