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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef SYNC_ENGINE_PROCESS_UPDATES_UTIL_H_
      6 #define SYNC_ENGINE_PROCESS_UPDATES_UTIL_H_
      7 
      8 #include <vector>
      9 
     10 #include "sync/internal_api/public/base/model_type.h"
     11 
     12 namespace sync_pb {
     13 class SyncEntity;
     14 }
     15 
     16 namespace syncer {
     17 
     18 namespace sessions {
     19 class StatusController;
     20 }
     21 
     22 namespace syncable {
     23 class ModelNeutralWriteTransaction;
     24 class Directory;
     25 }
     26 
     27 struct UpdateCounters;
     28 
     29 typedef std::vector<const sync_pb::SyncEntity*> SyncEntityList;
     30 
     31 // Processes all the updates associated with a single ModelType.
     32 void ProcessDownloadedUpdates(
     33     syncable::Directory* dir,
     34     syncable::ModelNeutralWriteTransaction* trans,
     35     ModelType type,
     36     const SyncEntityList& applicable_updates,
     37     sessions::StatusController* status,
     38     UpdateCounters* counters);
     39 
     40 // Tombstones all entries of |type| whose versions are older than
     41 // |version_watermark| unless they are type root or unsynced/unapplied.
     42 void ExpireEntriesByVersion(syncable::Directory* dir,
     43                             syncable::ModelNeutralWriteTransaction* trans,
     44                             ModelType type,
     45                             int64 version_watermark);
     46 
     47 }  // namespace syncer
     48 
     49 #endif  // SYNC_ENGINE_PROCESS_UPDATES_UTIL_H_
     50