Allow adding user and launching guest mode when all profiles are lock while force sign in is enable…

chrome/browser/ui/webui/signin/md_user_manager_ui.cc

 // Copyright 2016 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/signin/md_user_manager_ui.h"
 
 #include <string>
 
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_shortcut_manager.h"
 #include "chrome/browser/ui/webui/signin/signin_create_profile_handler.h"
+#include "chrome/browser/ui/webui/signin/signin_utils.h"
 #include "chrome/browser/ui/webui/signin/user_manager_screen_handler.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/features.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/browser_resources.h"
 #include "chrome/grit/settings_resources.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/browser/web_ui_data_source.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/webui/web_ui_util.h"
@@ skipping 32 matching lines @@
 
 MDUserManagerUI::~MDUserManagerUI() {}
 
 content::WebUIDataSource* MDUserManagerUI::CreateUIDataSource(
     const base::DictionaryValue& localized_strings) {
   content::WebUIDataSource* source =
       content::WebUIDataSource::Create(chrome::kChromeUIMdUserManagerHost);
   source->AddLocalizedStrings(localized_strings);
   source->AddBoolean("profileShortcutsEnabled",
                      ProfileShortcutManager::IsFeatureEnabled());
+  source->AddBoolean("isForceSigninEnabled", signin::IsForceSigninEnabled());
 
   source->SetJsonPath("strings.js");
 
   source->AddResourcePath("control_bar.html", IDR_MD_CONTROL_BAR_HTML);
   source->AddResourcePath("control_bar.js", IDR_MD_CONTROL_BAR_JS);
   source->AddResourcePath("create_profile.html", IDR_MD_CREATE_PROFILE_HTML);
   source->AddResourcePath("create_profile.js", IDR_MD_CREATE_PROFILE_JS);
   source->AddResourcePath("error_dialog.html", IDR_MD_ERROR_DIALOG_HTML);
   source->AddResourcePath("error_dialog.js", IDR_MD_ERROR_DIALOG_JS);
   source->AddResourcePath("icons.html", IDR_MD_USER_MANAGER_ICONS_HTML);
@@ skipping 44 matching lines @@
 #endif
   const std::string& app_locale = g_browser_process->GetApplicationLocale();
   webui::SetLoadTimeDataDefaults(app_locale, localized_strings);
 
 #if defined(GOOGLE_CHROME_BUILD)
   localized_strings->SetString("buildType", "chrome");
 #else
   localized_strings->SetString("buildType", "chromium");
 #endif
 }