|  | // Copyright 2016 The PDFium Authors | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 
|  |  | 
|  | #ifndef CORE_FPDFDOC_CPDF_BOOKMARKTREE_H_ | 
|  | #define CORE_FPDFDOC_CPDF_BOOKMARKTREE_H_ | 
|  |  | 
|  | #include "core/fpdfdoc/cpdf_bookmark.h" | 
|  | #include "core/fxcrt/unowned_ptr.h" | 
|  |  | 
|  | class CPDF_Document; | 
|  |  | 
|  | class CPDF_BookmarkTree { | 
|  | public: | 
|  | explicit CPDF_BookmarkTree(const CPDF_Document* doc); | 
|  | ~CPDF_BookmarkTree(); | 
|  |  | 
|  | CPDF_Bookmark GetFirstChild(const CPDF_Bookmark& parent) const; | 
|  | CPDF_Bookmark GetNextSibling(const CPDF_Bookmark& bookmark) const; | 
|  |  | 
|  | private: | 
|  | UnownedPtr<const CPDF_Document> const document_; | 
|  | }; | 
|  |  | 
|  | #endif  // CORE_FPDFDOC_CPDF_BOOKMARKTREE_H_ |