Added login screen mode for adding users into session.

chrome/browser/chromeos/login/webui_login_display.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/chromeos/login/webui_login_display.h"
 
 #include "ash/wm/user_activity_detector.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_util.h"
 #include "chrome/browser/chromeos/login/login_display_host_impl.h"
 #include "chrome/browser/chromeos/login/screen_locker.h"
+#include "chrome/browser/chromeos/login/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/login/webui_login_view.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chromeos/ime/input_method_manager.h"
 #include "chromeos/ime/xkeyboard.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/views/widget/widget.h"
@@ skipping 192 matching lines @@
   return parent_window();
 }
 
 // WebUILoginDisplay, SigninScreenHandlerDelegate implementation: --------------
 void WebUILoginDisplay::CancelPasswordChangedFlow() {
   DCHECK(delegate_);
   if (delegate_)
     delegate_->CancelPasswordChangedFlow();
 }
 
+void WebUILoginDisplay::CancelUserAdding() {
+  if (!UserAddingScreen::Get()->IsRunning()) {
+    LOG(ERROR) << "User adding screen not running.";
+    return;
+  }
+  UserAddingScreen::Get()->Cancel();
+}
+
 void WebUILoginDisplay::CreateAccount() {
   DCHECK(delegate_);
   if (delegate_)
     delegate_->CreateAccount();
 }
 
 void WebUILoginDisplay::CompleteLogin(const UserContext& user_context) {
   DCHECK(delegate_);
   if (delegate_)
     delegate_->CompleteLogin(user_context);
@@ skipping 131 matching lines @@
       base::TimeDelta::FromSeconds(kPasswordClearTimeoutSec), this,
       &WebUILoginDisplay::OnPasswordClearTimerExpired);
 }
 
 void WebUILoginDisplay::OnPasswordClearTimerExpired() {
   if (webui_handler_)
     webui_handler_->ClearUserPodPassword();
 }
 
 }  // namespace chromeos