Add IsAuthenticated() method to SigninManager.

chrome/browser/profiles/gaia_info_update_service.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/profiles/gaia_info_update_service.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 31 matching lines @@
 }
 
 GAIAInfoUpdateService::~GAIAInfoUpdateService() {
   DCHECK(!profile_) << "Shutdown not called before dtor";
 }
 
 void GAIAInfoUpdateService::Update() {
   // The user must be logged in.
   SigninManagerBase* signin_manager =
       SigninManagerFactory::GetForProfile(profile_);
-  if (signin_manager->GetAuthenticatedAccountId().empty())
+  if (!signin_manager->IsAuthenticated())
     return;
 
   if (profile_image_downloader_)
     return;
   profile_image_downloader_.reset(new ProfileDownloader(this));
   profile_image_downloader_->Start();
 }
 
 // static
 bool GAIAInfoUpdateService::ShouldUseGAIAProfileInfo(Profile* profile) {
@@ skipping 142 matching lines @@
 
 void GAIAInfoUpdateService::GoogleSigninSucceeded(
     const std::string& username,
     const std::string& password) {
   OnUsernameChanged(username);
 }
 
 void GAIAInfoUpdateService::GoogleSignedOut(const std::string& username) {
   OnUsernameChanged(std::string());
 }