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

chrome/browser/sync/profile_sync_service.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_SYNC_PROFILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 672 matching lines @@
   void ConfigurePriorityDataTypes();
 
   // Helper to install and configure a data type manager.
   void ConfigureDataTypeManager();
 
   // Shuts down the backend sync components.
   // |option| indicates if syncing is being disabled or not, and whether
   // to claim ownership of sync thread from backend.
   void ShutdownImpl(browser_sync::SyncBackendHost::ShutdownOption option);
 
-  // Return SyncCredentials from the TokenService.
+  // Return SyncCredentials from the OAuth2TokenService.
   syncer::SyncCredentials GetCredentials();
 
   virtual syncer::WeakHandle<syncer::JsEventHandler> GetJsEventHandler();
 
   // Test need to override this to create backends that allow setting up
   // initial conditions, such as populating sync nodes.
   //
   // TODO(akalin): Figure out a better way to do this.  Ideally, we'd
   // construct the backend outside this class and pass it in to the
   // contructor or Initialize().
@@ skipping 71 matching lines @@
   // OnPassphraseRequired() but no data types are enabled).
   void ResolvePassphraseRequired();
 
   // During initial signin, ProfileSyncService caches the user's signin
   // passphrase so it can be used to encrypt/decrypt data after sync starts up.
   // This routine is invoked once the backend has started up to use the
   // cached passphrase and clear it out when it is done.
   void ConsumeCachedPassphraseIfPossible();
 
   // RequestAccessToken initiates RPC to request downscoped access token from
-  // refresh token. This happens when TokenService loads OAuth2 login token and
+  // refresh token. This happens when a new OAuth2 login token is loaded and
   // when sync server returns AUTH_ERROR which indicates it is time to refresh
   // token.
   virtual void RequestAccessToken();
 
   // If |delete_sync_data_folder| is true, then this method will delete all
   // previous "Sync Data" folders. (useful if the folder is partial/corrupt).
   void InitializeBackend(bool delete_sync_data_folder);
 
   // Initializes the various settings from the command line.
   void InitSettings();
@@ skipping 219 matching lines @@
   base::Time next_token_request_time_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(
     const syncer::SyncProtocolError& error);
 
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_