[cros] Display emails of users are stored in a separate dictionary in Local State.

chrome/browser/ui/webui/options/chromeos/accounts_options_handler.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_UI_WEBUI_OPTIONS_CHROMEOS_ACCOUNTS_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_ACCOUNTS_OPTIONS_HANDLER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/webui/options/options_ui.h"
 
 namespace chromeos {
 
 class UserCrosSettingsProvider;
 
 // ChromeOS accounts options page handler.
 class AccountsOptionsHandler : public OptionsPageUIHandler {
  public:
   AccountsOptionsHandler();
   virtual ~AccountsOptionsHandler();
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(
       base::DictionaryValue* localized_strings) OVERRIDE;
 
+  // Creates a user info dictionary to be stored in the |ListValue| that is
+  // passed to Javascript for the |kAccountsPrefUsers| preference.
+  static base::DictionaryValue* CreateUserInfo(const std::string& username,
+                                               const std::string& display_email,
+                                               const std::string& display_name);
+
  private:
   // Javascript callbacks to whitelist/unwhitelist user.
-  void WhitelistUser(const base::ListValue* args);
-  void UnwhitelistUser(const base::ListValue* args);
+  void HandleWhitelistUser(const base::ListValue* args);
+  void HandleUnwhitelistUser(const base::ListValue* args);
 
   // Javascript callback to auto add existing users to white list.
-  void WhitelistExistingUsers(const base::ListValue* args);
+  void HandleWhitelistExistingUsers(const base::ListValue* args);
+
+  // Adds specified user to the whitelist. Returns false if that user is already
+  // in the whitelist.
+  bool WhitelistUser(const std::string& username);
+
+  // Returns true if |username| is the logged-in owner.
+  static bool IsLoggedInOwner(const std::string& username);
 
   DISALLOW_COPY_AND_ASSIGN(AccountsOptionsHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_ACCOUNTS_OPTIONS_HANDLER_H_