GetUndoRenumberObserver   32 chrome/browser/undo/bookmark_undo_service.cc   BookmarkRenumberObserver* GetUndoRenumberObserver() const;
GetUndoRenumberObserver  172 chrome/browser/undo/bookmark_undo_service.cc     GetUndoRenumberObserver()->OnBookmarkRenumbered(element.id(), node->id());