Clean up CPDF_Creator.

core/fpdfapi/fpdf_edit/include/cpdf_creator.h

 // Copyright 2014 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_FPDFAPI_FPDF_EDIT_INCLUDE_CPDF_CREATOR_H_
 #define CORE_FPDFAPI_FPDF_EDIT_INCLUDE_CPDF_CREATOR_H_
 
+#include <memory>
+
 #include "core/fxcrt/include/fx_basic.h"
 
 class CPDF_Array;
 class CPDF_CryptoHandler;
 class CPDF_Dictionary;
 class CPDF_Document;
 class CPDF_Object;
 class CPDF_Parser;
 class CPDF_XRefStream;
 
 #define FPDFCREATE_INCREMENTAL 1
 #define FPDFCREATE_NO_ORIGINAL 2
 #define FPDFCREATE_PROGRESSIVE 4
 #define FPDFCREATE_OBJECTSTREAM 8
 
 CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& buf, const CPDF_Object* pObj);
 
 class CPDF_Creator {
  public:
-  CPDF_Creator(CPDF_Document* pDoc);
+  explicit CPDF_Creator(CPDF_Document* pDoc);
   ~CPDF_Creator();
 
   void RemoveSecurity();
   bool Create(IFX_StreamWrite* pFile, uint32_t flags = 0);
   int32_t Continue(IFX_Pause* pPause = NULL);
   FX_BOOL SetFileVersion(int32_t fileVersion = 17);
 
  private:
   friend class CPDF_ObjectStream;
   friend class CPDF_XRefStream;
@@ skipping 24 matching lines @@
   int32_t WriteIndirectObjectToStream(const CPDF_Object* pObj);
   int32_t WriteIndirectObj(uint32_t objnum, const CPDF_Object* pObj);
   int32_t WriteIndirectObjectToStream(uint32_t objnum,
                                       const uint8_t* pBuffer,
                                       uint32_t dwSize);
 
   int32_t WriteStream(const CPDF_Object* pStream,
                       uint32_t objnum,
                       CPDF_CryptoHandler* pCrypto);
 
-  CPDF_Document* m_pDocument;
-  CPDF_Parser* m_pParser;
-  FX_BOOL m_bCompress;
+  CPDF_Document* const m_pDocument;
+  CPDF_Parser* const m_pParser;
   FX_BOOL m_bSecurityChanged;
   CPDF_Dictionary* m_pEncryptDict;
-  uint32_t m_dwEnryptObjNum;
+  uint32_t m_dwEncryptObjNum;
   FX_BOOL m_bEncryptCloned;
   CPDF_CryptoHandler* m_pCryptoHandler;
   FX_BOOL m_bLocalCryptoHandler;
-  FX_BOOL m_bEncryptMetadata;
   CPDF_Object* m_pMetadata;
-  CPDF_XRefStream* m_pXRefStream;
+  std::unique_ptr<CPDF_XRefStream> m_pXRefStream;
   int32_t m_ObjectStreamSize;
   uint32_t m_dwLastObjNum;
   CFX_FileBufferArchive m_File;
   FX_FILESIZE m_Offset;
   int32_t m_iStage;
   uint32_t m_dwFlags;
   FX_POSITION m_Pos;
   FX_FILESIZE m_XrefStart;
   CFX_FileSizeListArray m_ObjectOffset;
   CFX_ArrayTemplate<uint32_t> m_NewObjNumArray;
   CPDF_Array* m_pIDArray;
   int32_t m_FileVersion;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_EDIT_INCLUDE_CPDF_CREATOR_H_