Implement users options handling in login screen.

chrome/browser/chromeos/login/login_utils.cc

 // Copyright (c) 2010 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/chromeos/login/login_utils.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/lock.h"
@@ skipping 121 matching lines @@
 };
 
 void LoginUtilsImpl::CompleteLogin(const std::string& username,
     const GaiaAuthConsumer::ClientLoginResult& credentials) {
 
   LOG(INFO) << "Completing login for " << username;
 
   if (CrosLibrary::Get()->EnsureLoaded())
     CrosLibrary::Get()->GetLoginLibrary()->StartSession(username, "");
 
-  const std::vector<UserManager::User>& users = UserManager::Get()->GetUsers();
-
-  bool first_login = true;
-  for (std::vector<UserManager::User>::const_iterator it = users.begin();
-       it < users.end(); ++it) {
-    std::string user_email = it->email();
-    if (username == user_email) {
-      first_login = false;
-      break;
-    }
-  }
-
+  bool first_login = !UserManager::Get()->IsKnownUser(username);
   UserManager::Get()->UserLoggedIn(username);
 
   // Now launch the initial browser window.
   FilePath user_data_dir;
   PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
   ProfileManager* profile_manager = g_browser_process->profile_manager();
   // The default profile will have been changed because the ProfileManager
   // will process the notification that the UserManager sends out.
   Profile* profile = profile_manager->GetDefaultProfile(user_data_dir);
 
@@ skipping 143 matching lines @@
   BrowserInit browser_init;
   int return_code;
   browser_init.LaunchBrowser(*CommandLine::ForCurrentProcess(),
                              profile,
                              FilePath(),
                              true,
                              &return_code);
 }
 
 }  // namespace chromeos