components: Extract pref_registry component out of user_prefs.

chrome/browser/prefs/pref_service_syncable.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_PREFS_PREF_SERVICE_SYNCABLE_H_
 #define CHROME_BROWSER_PREFS_PREF_SERVICE_SYNCABLE_H_
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/prefs/pref_model_associator.h"
 #include "chrome/browser/prefs/synced_pref_observer.h"
-#include "components/user_prefs/pref_registry_syncable.h"
+#include "components/pref_registry/pref_registry_syncable.h"
 
 class PrefServiceSyncableObserver;
 class Profile;
 
 namespace syncer {
 class SyncableService;
 }
 
 // A PrefService that can be synced. Users are forced to declare
 // whether preferences are syncable or not when registering them to
@@ skipping 84 matching lines @@
 
   PrefModelAssociator pref_sync_associator_;
   PrefModelAssociator priority_pref_sync_associator_;
 
   ObserverList<PrefServiceSyncableObserver> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefServiceSyncable);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_SERVICE_SYNCABLE_H_