cros: Remove supervised user methods from SystemTrayDelegate

ash/test/test_system_tray_delegate.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/test/test_system_tray_delegate.h"
 
 #include <string>
 
 #include "ash/login_status.h"
 #include "ash/session/session_controller.h"
@@ skipping 22 matching lines @@
 }
 
 void TestSystemTrayDelegate::SetAvailableIMEList(const IMEInfoList& list) {
   ime_list_ = list;
 }
 
 LoginStatus TestSystemTrayDelegate::GetUserLoginStatus() const {
   return Shell::Get()->session_controller()->login_status();
 }
 
-std::string TestSystemTrayDelegate::GetSupervisedUserManager() const {
-  if (!Shell::Get()->session_controller()->IsUserSupervised())
-    return std::string();
-  return "manager@chrome.com";
-}
-
 bool TestSystemTrayDelegate::GetSessionStartTime(
     base::TimeTicks* session_start_time) {
   // Just returns TimeTicks::Now(), so the remaining time is always the
   // specified limit. This is useful for testing.
   if (session_length_limit_set_)
     *session_start_time = base::TimeTicks::Now();
   return session_length_limit_set_;
 }
 
 bool TestSystemTrayDelegate::GetSessionLengthLimit(
     base::TimeDelta* session_length_limit) {
   if (session_length_limit_set_)
     *session_length_limit = session_length_limit_;
   return session_length_limit_set_;
 }
 
 void TestSystemTrayDelegate::GetCurrentIME(IMEInfo* info) {
   *info = current_ime_;
 }
 
 void TestSystemTrayDelegate::GetAvailableIMEList(IMEInfoList* list) {
   *list = ime_list_;
 }
 
 }  // namespace test
 }  // namespace ash