[ChromeOS] Assorted WebUI login fixes.

chrome/browser/chromeos/login/webui_login_display.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_WEBUI_LOGIN_DISPLAY_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_WEBUI_LOGIN_DISPLAY_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 57 matching lines @@
   virtual void ShowError(int error_msg_id,
                          int login_attempts,
                          HelpAppLauncher::HelpTopic help_topic_id) OVERRIDE;
 
   // SigninScreenHandlerDelegate implementation:
   virtual void CompleteLogin(const std::string& username,
                              const std::string& password) OVERRIDE;
   virtual void Login(const std::string& username,
                      const std::string& password) OVERRIDE;
   virtual void LoginAsGuest() OVERRIDE;
+  virtual void RemoveUser(const std::string& username) OVERRIDE;
   virtual void ShowEnterpriseEnrollmentScreen() OVERRIDE;
   virtual void SetWebUIHandler(
       LoginDisplayWebUIHandler* webui_handler) OVERRIDE;
 
   void set_login_window(views::Widget* login_window) {
     login_window_ = login_window;
   }
 
+  const std::vector<UserManager::User>& users() const {
+    return users_;
+  }
+
+  bool show_guest() const {
+    return show_guest_;
+  }
+
+  bool show_new_user() const {
+    return show_new_user_;
+  }
+
  private:
   // Singleton implementation:
   friend struct DefaultSingletonTraits<WebUILoginDisplay>;
   WebUILoginDisplay();
 
-  // Set of Users in the systemvisible UserControllers.
+  // Set of Users that are visible.
   std::vector<UserManager::User> users_;
 
+  // Whether to show guest login.
+  bool show_guest_;
+
+  // Whether to show add new user.
+  bool show_new_user_;
+
   // Container of the screen we are displaying
   views::Widget* login_window_;
 
   // Reference to the WebUI handling layer for the login screen
   LoginDisplayWebUIHandler* webui_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(WebUILoginDisplay);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_WEBUI_LOGIN_DISPLAY_H_