core/include/fdpfapi cleanup Part I.

core/include/fpdfapi/cpdf_indirect_object_holder.h

-// Copyright 2016 PDFium Authors. All rights reserved.
-// 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_INCLUDE_FPDFAPI_CPDF_INDIRECT_OBJECT_HOLDER_H_
-#define CORE_INCLUDE_FPDFAPI_CPDF_INDIRECT_OBJECT_HOLDER_H_
-
-#include <map>
-
-#include "core/include/fxcrt/fx_system.h"
-
-class CPDF_Object;
-class CPDF_Parser;
-
-class CPDF_IndirectObjectHolder {
- public:
-  using iterator = std::map<FX_DWORD, CPDF_Object*>::iterator;
-  using const_iterator = std::map<FX_DWORD, CPDF_Object*>::const_iterator;
-
-  explicit CPDF_IndirectObjectHolder(CPDF_Parser* pParser);
-  ~CPDF_IndirectObjectHolder();
-
-  CPDF_Object* GetIndirectObject(FX_DWORD objnum);
-  FX_DWORD AddIndirectObject(CPDF_Object* pObj);
-  void ReleaseIndirectObject(FX_DWORD objnum);
-
-  // Takes ownership of |pObj|.
-  FX_BOOL InsertIndirectObject(FX_DWORD objnum, CPDF_Object* pObj);
-
-  FX_DWORD GetLastObjNum() const { return m_LastObjNum; }
-  iterator begin() { return m_IndirectObjs.begin(); }
-  const_iterator begin() const { return m_IndirectObjs.begin(); }
-  iterator end() { return m_IndirectObjs.end(); }
-  const_iterator end() const { return m_IndirectObjs.end(); }
-
- protected:
-  CPDF_Parser* m_pParser;
-  FX_DWORD m_LastObjNum;
-  std::map<FX_DWORD, CPDF_Object*> m_IndirectObjs;
-};
-
-#endif  // CORE_INCLUDE_FPDFAPI_CPDF_INDIRECT_OBJECT_HOLDER_H_