Add disable flag around supervised user import code.

chrome/browser/ui/webui/options/create_profile_handler.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 "chrome/browser/ui/webui/options/create_profile_handler.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/metrics/histogram.h"
@@ skipping 394 matching lines @@
 
   NOTREACHED();
   return std::string();
 }
 
 bool CreateProfileHandler::IsValidExistingManagedUserId(
     const std::string& existing_managed_user_id) const {
   if (existing_managed_user_id.empty())
     return true;
 
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kAllowCreateExistingManagedUsers)) {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kDisableCreateExistingManagedUsers)) {
     return false;
   }
 
   Profile* profile = Profile::FromWebUI(web_ui());
   const base::DictionaryValue* dict =
       ManagedUserSyncServiceFactory::GetForProfile(profile)->GetManagedUsers();
   if (!dict->HasKey(existing_managed_user_id))
     return false;
 
   // Check if this managed user already exists on this machine.
   const ProfileInfoCache& cache =
       g_browser_process->profile_manager()->GetProfileInfoCache();
   for (size_t i = 0; i < cache.GetNumberOfProfiles(); ++i) {
     if (existing_managed_user_id == cache.GetManagedUserIdOfProfileAtIndex(i))
       return false;
   }
   return true;
 }
 
 }  // namespace options