This is the third CL of several that will eventually replace TokenService with

chrome/browser/net/gaia/gaia_oauth_fetcher.h

 // 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.
 
 #ifndef CHROME_BROWSER_NET_GAIA_GAIA_OAUTH_FETCHER_H_
 #define CHROME_BROWSER_NET_GAIA_GAIA_OAUTH_FETCHER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 71 matching lines @@
   // Obtains an OAuth2 access token using Gaia's OAuth1-to-OAuth2 bridge.
   //
   // oauth1_access_token and oauth1_access_token_secret are from
   // OAuthGetAccessToken's result.
   //
   // wrap_token_duration is typically one hour,
   // which is also the max -- you can only decrease it.
   //
   // service_scope will be used as a service name.  For example, Chromium Sync
   // uses https://www.googleapis.com/auth/chromesync for its OAuth2 service
-  // scope here as well as for its service name in TokenService.
+  // scope.
   virtual void StartOAuthWrapBridge(
       const std::string& oauth1_access_token,
       const std::string& oauth1_access_token_secret,
       const std::string& wrap_token_duration,
       const std::string& service_scope);
 
   // Obtains user information related to an OAuth2 access token
   //
   // oauth2_access_token is from OAuthWrapBridge's result.
   virtual void StartUserInfo(const std::string& oauth2_access_token);
@@ skipping 120 matching lines @@
   std::string request_body_;
   std::string request_headers_;
   std::string service_scope_;
   bool fetch_pending_;
   RequestType auto_fetch_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(GaiaOAuthFetcher);
 };
 
 #endif  // CHROME_BROWSER_NET_GAIA_GAIA_OAUTH_FETCHER_H_