Added login screen mode for adding users into session.

chrome/browser/ui/webui/chromeos/login/oobe_ui.cc

 // Copyright (c) 2012 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/chromeos/login/oobe_ui.h"
 
 #include <string>
 
 #include "ash/ash_switches.h"
 #include "base/command_line.h"
@@ skipping 312 matching lines @@
 
   // If we're not doing boot animation then WebUI should trigger
   // wallpaper load on boot.
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableBootAnimation)) {
     localized_strings->SetString("bootIntoWallpaper", "on");
   } else {
     localized_strings->SetString("bootIntoWallpaper", "off");
   }
 
-  // TODO(nkostylev): Make sure that only one type of login UI
-  // is active at a time.
-  // OobeUI is used for these use cases:
-  // 1. Out-of-box / login
-  // 2. Lock screen.
-  // 3. Multi-profiles sign in (add user to current session).
-  if (LoginDisplayHostImpl::default_host()) {
-    if (!UserManager::Get()->IsUserLoggedIn())
-      localized_strings->SetString("screenType", "login");
-    else
-      localized_strings->SetString("screenType", "login-add-user");
-  } else {
-    localized_strings->SetString("screenType", "lock");
-  }
-
   bool keyboard_driven_oobe = false;
   system::StatisticsProvider::GetInstance()->GetMachineFlag(
       chromeos::kOemKeyboardDrivenOobeKey, &keyboard_driven_oobe);
   localized_strings->SetString("highlightStrength",
                                keyboard_driven_oobe ? "strong" : "normal");
 }
 
 void OobeUI::InitializeScreenMaps() {
   screen_names_.resize(SCREEN_UNKNOWN);
   screen_names_[SCREEN_OOBE_NETWORK] = kScreenOobeNetwork;
@@ skipping 67 matching lines @@
 void OobeUI::OnCurrentScreenChanged(const std::string& screen) {
   if (screen_ids_.count(screen)) {
     current_screen_ = screen_ids_[screen];
   } else {
     NOTREACHED() << "Screen should be registered in InitializeScreenMaps()";
     current_screen_ = SCREEN_UNKNOWN;
   }
 }
 
 }  // namespace chromeos