Add IsAuthenticated() method to SigninManager.

chrome/browser/ui/webui/options/supervised_user_import_handler.cc

 // Copyright 2014 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/options/supervised_user_import_handler.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/prefs/pref_service.h"
@@ skipping 202 matching lines @@
 
 void SupervisedUserImportHandler::ClearSupervisedUsersAndShowError() {
   web_ui()->CallJavascriptFunction(
       "options.SupervisedUserListData.onSigninError");
 }
 
 bool SupervisedUserImportHandler::IsAccountConnected() const {
   Profile* profile = Profile::FromWebUI(web_ui());
   SigninManagerBase* signin_manager =
       SigninManagerFactory::GetForProfile(profile);
-  return signin_manager && !signin_manager->GetAuthenticatedUsername().empty();
+  return signin_manager && signin_manager->IsAuthenticated();
 }
 
 bool SupervisedUserImportHandler::HasAuthError() const {
   Profile* profile = Profile::FromWebUI(web_ui());
   ProfileOAuth2TokenService* token_service =
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
   if (!token_service)
     return true;
 
   SigninErrorController* error_controller =
@@ skipping 12 matching lines @@
     const std::string& key) {
   if (key == supervised_users::kChromeAvatarIndex)
     FetchSupervisedUsers();
 }
 
 void SupervisedUserImportHandler::OnErrorChanged() {
   FetchSupervisedUsers();
 }
 
 }  // namespace options