use unique_ptr in fpdf_font_cid.cpp

core/fpdfapi/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_FONT_FONT_INT_H_
 #define CORE_FPDFAPI_FONT_FONT_INT_H_
 
 #include <map>
 #include <memory>
 #include <vector>
 
 #include "core/fpdfapi/font/cpdf_cidfont.h"
+#include "core/fxcrt/cfx_maybe_owned.h"
 #include "core/fxcrt/fx_basic.h"
 
 class CPDF_CID2UnicodeMap;
 class CPDF_CMap;
 class CPDF_Font;
 class CPDF_Stream;
 
 using FXFT_Library = void*;
 
 int TT2PDF(int m, FXFT_Face face);
 bool FT_UseTTCharmap(FXFT_Face face, int platform_id, int encoding_id);
 CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering);
 
 class CPDF_CMapManager {
  public:
   CPDF_CMapManager();
   ~CPDF_CMapManager();
 
-  CPDF_CMap* GetPredefinedCMap(const CFX_ByteString& name, bool bPromptCJK);
+  CFX_MaybeOwned<CPDF_CMap> GetPredefinedCMap(const CFX_ByteString& name,
+                                              bool bPromptCJK);
   CPDF_CID2UnicodeMap* GetCID2UnicodeMap(CIDSet charset, bool bPromptCJK);
 
  private:
-  CPDF_CMap* LoadPredefinedCMap(const CFX_ByteString& name, bool bPromptCJK);
-  CPDF_CID2UnicodeMap* LoadCID2UnicodeMap(CIDSet charset, bool bPromptCJK);
+  std::unique_ptr<CPDF_CMap> LoadPredefinedCMap(const CFX_ByteString& name,
+                                                bool bPromptCJK);
+  std::unique_ptr<CPDF_CID2UnicodeMap> LoadCID2UnicodeMap(CIDSet charset,
+                                                          bool bPromptCJK);
 
-  std::map<CFX_ByteString, CPDF_CMap*> m_CMaps;
-  CPDF_CID2UnicodeMap* m_CID2UnicodeMaps[6];
+  std::map<CFX_ByteString, std::unique_ptr<CPDF_CMap>> m_CMaps;
+  std::unique_ptr<CPDF_CID2UnicodeMap> m_CID2UnicodeMaps[6];
 };
 
 class CFX_StockFontArray {
  public:
   CFX_StockFontArray();
   ~CFX_StockFontArray();
 
   // Takes ownership of |pFont|, returns unowned pointer to it.
   CPDF_Font* SetFont(uint32_t index, std::unique_ptr<CPDF_Font> pFont);
   CPDF_Font* GetFont(uint32_t index) const;
@@ skipping 146 matching lines @@
   static CFX_WideString StringToWideString(const CFX_ByteStringC& str);
 
   uint32_t GetUnicode();
 
   std::map<uint32_t, uint32_t> m_Map;
   CPDF_CID2UnicodeMap* m_pBaseMap;
   CFX_WideTextBuf m_MultiCharBuf;
 };
 
 #endif  // CORE_FPDFAPI_FONT_FONT_INT_H_