suppress user/password dialog when re-enabling sync

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_
 #pragma once
 
 #include <list>
 #include <string>
@@ skipping 599 matching lines @@
   // backend is because if we had encountered an unrecoverable error we don't
   // want to startup once more.
   virtual void ReconfigureDatatypeManager();
 
   // Called when the user changes the sync configuration, to update the UMA
   // stats.
   void UpdateSelectedTypesHistogram(
       bool sync_everything,
       const syncable::ModelTypeSet chosen_types) const;
 
+#if defined(OS_CHROMEOS)
+  // Refresh spare sync bootstrap token for re-enabling the sync service.
+  // Called on successful sign-in notifications.
+  void RefreshSpareBootstrapToken(const std::string& passphrase);
+#endif
+
   // Factory used to create various dependent objects.
   scoped_ptr<ProfileSyncComponentsFactory> factory_;
 
   // The profile whose data we are synchronizing.
   Profile* profile_;
 
   // The class that handles getting, setting, and persisting sync
   // preferences.
   browser_sync::SyncPrefs sync_prefs_;
 
@@ skipping 107 matching lines @@
   bool setup_in_progress_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(
     const browser_sync::SyncProtocolError& error);
 
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_