sync: Start moving away from PREV_ID and NEXT_ID

sync/syncable/nigori_util.cc

 // Copyright 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.
 
 #include "sync/syncable/nigori_util.h"
 
 #include <queue>
 #include <string>
 #include <vector>
 
@@ skipping 133 matching lines @@
       if (specifics.has_encrypted() != is_encrypted)
         return false;
       if (specifics.has_encrypted()) {
         if (child.Get(NON_UNIQUE_NAME) != kEncryptedString)
           return false;
         if (!cryptographer->CanDecryptUsingDefaultKey(specifics.encrypted()))
           return false;
       }
     }
     // Push the successor.
-    to_visit.push(child.Get(NEXT_ID));
+    to_visit.push(child.GetSuccessorId());
   }
   return true;
 }
 
 bool UpdateEntryWithEncryption(
     BaseTransaction* const trans,
     const sync_pb::EntitySpecifics& new_specifics,
     syncable::MutableEntry* entry) {
   NigoriHandler* nigori_handler = trans->directory()->GetNigoriHandler();
   Cryptographer* cryptographer = trans->directory()->GetCryptographer(trans);
@@ skipping 143 matching lines @@
     encrypted_types.Put(APP_SETTINGS);
   if (nigori.encrypt_apps())
     encrypted_types.Put(APPS);
   if (nigori.encrypt_app_notifications())
     encrypted_types.Put(APP_NOTIFICATIONS);
   return encrypted_types;
 }
 
 }  // namespace syncable
 }  // namespace syncer