Make the change in ProfileSyncService such that it declares success

chrome/browser/sync/profile_sync_service.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_SYNC_PROFILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 #pragma once
 
 #include <list>
 #include <string>
@@ skipping 142 matching lines @@
                      SigninManager* signin,  // Service takes ownership.
                      const std::string& cros_user);
   virtual ~ProfileSyncService();
 
   // Initializes the object. This should be called every time an object of this
   // class is constructed.
   void Initialize();
 
   void RegisterAuthNotifications();
 
-  // Return whether all sync tokens are loaded and
-  // available for the backend to start up.
+  // Same as AreCredentialsAvailable(false).
   bool AreCredentialsAvailable();
 
+  // Return whether all sync tokens are loaded and available for the backend to
+  // start up. Also checks for OAuth login token if |check_oauth_login_token| is
+  // true.
+  bool AreCredentialsAvailable(bool check_oauth_login_token);
+
   // Registers a data type controller with the sync service.  This
   // makes the data type controller available for use, it does not
   // enable or activate the synchronization of the data type (see
   // ActivateDataType).  Takes ownership of the pointer.
   void RegisterDataTypeController(
       browser_sync::DataTypeController* data_type_controller);
 
   // Returns the session model associator associated with this type, but only if
   // the associator is running.  If it is doing anything else, it will return
   // null.
@@ skipping 527 matching lines @@
   FailedDatatypesHandler failed_datatypes_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(
     const browser_sync::SyncProtocolError& error);
 
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_