components/undo/bookmark_renumber_observer.h

   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 COMPONENTS_UNDO_BOOKMARK_RENUMBER_OBSERVER_H_
   6 #define COMPONENTS_UNDO_BOOKMARK_RENUMBER_OBSERVER_H_
   7
   8 #include "base/basictypes.h"
   9
  10 class BookmarkRenumberObserver {
  11  public:
  12   // Invoked when a bookmark id has been renumbered so that any
  13   // BookmarkUndoOperations that refer to that bookmark can be updated.
  14   virtual void OnBookmarkRenumbered(int64 old_id, int64 new_id) = 0;
  15
  16  protected:
  17   virtual ~BookmarkRenumberObserver() {}
  18 };
  19
  20 #endif  // COMPONENTS_UNDO_BOOKMARK_RENUMBER_OBSERVER_H_