Use unique_ptr in CPDF_CidFont

core/fpdfapi/fpdf_font/font_int.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_FONT_FONT_INT_H_
 #define CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_
 
 #include <map>
@@ skipping 115 matching lines @@
 class CPDF_CMap {
  public:
   enum CodingScheme : uint8_t {
     OneByte,
     TwoBytes,
     MixedTwoBytes,
     MixedFourBytes
   };
 
   CPDF_CMap();
+  ~CPDF_CMap();
+
   FX_BOOL LoadPredefined(CPDF_CMapManager* pMgr,
                          const FX_CHAR* name,
                          FX_BOOL bPromptCJK);
   FX_BOOL LoadEmbedded(const uint8_t* pData, uint32_t dwSize);
   void Release();
   FX_BOOL IsLoaded() const { return m_bLoaded; }
   FX_BOOL IsVertWriting() const { return m_bVertical; }
   uint16_t CIDFromCharCode(uint32_t charcode) const;
   uint32_t CharCodeFromCID(uint16_t CID) const;
   int GetCharSize(uint32_t charcode) const;
   uint32_t GetNextChar(const FX_CHAR* pString, int nStrLen, int& offset) const;
   int CountChar(const FX_CHAR* pString, int size) const;
   int AppendChar(FX_CHAR* str, uint32_t charcode) const;
 
  protected:
-  ~CPDF_CMap();
   friend class CPDF_CMapParser;
   friend class CPDF_CMapManager;
   friend class CPDF_CIDFont;
 
   CFX_ByteString m_PredefinedCMap;
   FX_BOOL m_bVertical;
   CIDSet m_Charset;
   int m_Coding;
   CodingScheme m_CodingScheme;
   int m_nCodeRanges;
@@ skipping 37 matching lines @@
 
   static uint32_t StringToCode(const CFX_ByteStringC& str);
   static CFX_WideString StringToWideString(const CFX_ByteStringC& str);
 };
 
 void FPDFAPI_LoadCID2UnicodeMap(CIDSet charset,
                                 const uint16_t*& pMap,
                                 uint32_t& count);
 
 #endif  // CORE_FPDFAPI_FPDF_FONT_FONT_INT_H_