Notify sync observers whenever preferred types change

chrome/browser/sync/profile_sync_service_harness.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_HARNESS_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_HARNESS_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 341 matching lines @@
   // AwaitMigration().
   syncable::ModelTypeSet migrated_types_;
 
   // Used for logging.
   const std::string profile_debug_name_;
 
   // Keeps track of the number of attempts at exponential backoff and its
   // related bookkeeping information for verification.
   browser_sync::RetryVerifier retry_verifier_;
 
+  // Flag set to true when we're waiting for a status change to happen. Used to
+  // avoid triggering internal state machine logic on unexpected sync observer
+  // callbacks.
+  bool waiting_for_status_change_;
+
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncServiceHarness);
 };
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_HARNESS_H_