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

chrome/browser/sync/test_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_TEST_PROFILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_TEST_PROFILE_SYNC_SERVICE_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 88 matching lines @@
 
   base::WeakPtrFactory<SyncBackendHostForProfileSyncTest> weak_ptr_factory_;
 };
 
 }  // namespace browser_sync
 
 class TestProfileSyncService : public ProfileSyncService {
  public:
   // TODO(tim): Remove |synchronous_backend_initialization|, and add ability to
   // inject TokenService alongside SigninManager.
+  // TODO(rogerta): what does above comment mean?
   TestProfileSyncService(
       ProfileSyncComponentsFactory* factory,
       Profile* profile,
       SigninManagerBase* signin,
       ProfileOAuth2TokenService* oauth2_token_service,
       ProfileSyncService::StartBehavior behavior,
       bool synchronous_backend_initialization);
 
   virtual ~TestProfileSyncService();
 
@@ skipping 64 matching lines @@
   bool synchronous_sync_configuration_;
 
   base::Closure callback_;
   bool set_initial_sync_ended_on_init_;
 
   bool fail_initial_download_;
   syncer::StorageOption storage_option_;
 };
 
 #endif  // CHROME_BROWSER_SYNC_TEST_PROFILE_SYNC_SERVICE_H_