Delete unused tutorial code from profile switcher/user manager.

chrome/browser/ui/cocoa/profiles/user_manager_mac_unittest.mm

 // Copyright 2014 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 "chrome/browser/ui/cocoa/profiles/user_manager_mac.h"
 
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "chrome/browser/profiles/profile_attributes_entry.h"
 #include "chrome/browser/profiles/profile_attributes_storage.h"
@@ skipping 39 matching lines @@
   // Set the ProfileLastUsed pref so that SetActiveProfileToGuestIfLocked() uses
   // a last active profile that's in the ProfileAttributesStorage, not default.
   g_browser_process->local_state()->SetString(
       prefs::kProfileLastUsed,
       g_browser_process->profile_manager()->GetProfileAttributesStorage().
           GetAllProfilesAttributes().front()->
           GetPath().BaseName().MaybeAsASCII());
 
   EXPECT_FALSE(UserManager::IsShowing());
   UserManager::Show(base::FilePath(),
-                    profiles::USER_MANAGER_NO_TUTORIAL,
                     profiles::USER_MANAGER_SELECT_PROFILE_NO_ACTION);
   EXPECT_TRUE(UserManager::IsShowing());
 
   UserManager::Hide();
   EXPECT_FALSE(UserManager::IsShowing());
 }