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      1 // Copyright (c) 2012 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_SYNCABLE_PARENT_CHILD_INDEX_UPDATER_H_
      6 #define SYNC_SYNCABLE_PARENT_CHILD_INDEX_UPDATER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "sync/base/sync_export.h"
     10 
     11 namespace syncer {
     12 namespace syncable {
     13 
     14 class ParentChildIndex;
     15 class ScopedKernelLock;
     16 struct EntryKernel;
     17 
     18 // Temporarily removes an item from the ParentChildIndex and re-adds it this
     19 // object goes out of scope.
     20 class ScopedParentChildIndexUpdater {
     21  public:
     22   ScopedParentChildIndexUpdater(ScopedKernelLock& proof_of_lock,
     23                                 EntryKernel* entry,
     24                                 ParentChildIndex* index);
     25   ~ScopedParentChildIndexUpdater();
     26 
     27  private:
     28   EntryKernel* entry_;
     29   ParentChildIndex* index_;
     30 
     31   DISALLOW_COPY_AND_ASSIGN(ScopedParentChildIndexUpdater);
     32 };
     33 
     34 }  // namespace syncer
     35 }  // namespace syncable
     36 
     37 #endif  // SYNC_SYNCABLE_PARENT_CHILD_INDEX_UPDATER_H_
     38