ChromeOS: Use OAuth2 refresh token to download GAIA info

chrome/browser/profiles/profile_downloader_delegate.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_PROFILES_PROFILE_DOWNLOADER_DELEGATE_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_DELEGATE_H_
 #pragma once
 
 #include <string>
 
@@ skipping 14 matching lines @@
   virtual int GetDesiredImageSideLength() const = 0;
 
   // Returns the cached URL. If the cache URL matches the new image URL
   // the image will not be downloaded. Return an empty string when there is no
   // cached URL.
   virtual std::string GetCachedPictureURL() const = 0;
 
   // Returns the browser profile associated with this download request.
   virtual Profile* GetBrowserProfile() = 0;
 
-  // Whether we should use an OAuth refresh token or the Picasa token from
-  // ClientLogin. The latter is currently used in ChromeOS.
-  virtual bool ShouldUseOAuthRefreshToken() const = 0;
-
   // Called when the download is complete. On success delegate should query
   // the downloader for values.
   virtual void OnDownloadComplete(ProfileDownloader* downloader,
                                   bool success) = 0;
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_DELEGATE_H_