Fix a leak in CPDF_Type3Font::LoadChar().

core/include/fpdfapi/fpdf_resource.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_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
 #define CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
 
+#include <map>
+
 #include "../fxcrt/fx_system.h"
 #include "../fxge/fx_font.h"
 #include "fpdf_parser.h"
 
 class CFX_CTTGSUBTable;
 class CFX_DIBitmap;
 class CFX_Font;
 class CFX_SubstFont;
 class CPDF_CID2UnicodeMap;
 class CPDF_CIDFont;
@@ skipping 383 matching lines @@
   CFX_AffineMatrix m_FontMatrix;
 
  private:
   FX_BOOL _Load() override;
   void LoadGlyphMap() override {}
 
   int m_CharWidthL[256];
   CPDF_Dictionary* m_pCharProcs;
   CPDF_Dictionary* m_pPageResources;
   CPDF_Dictionary* m_pFontResources;
-  CFX_MapPtrToPtr m_CacheMap;
-  CFX_MapPtrToPtr m_DeletedMap;
+  std::map<FX_DWORD, CPDF_Type3Char*> m_CacheMap;
 };
 
 enum CIDSet {
   CIDSET_UNKNOWN,
   CIDSET_GB1,
   CIDSET_CNS1,
   CIDSET_JAPAN1,
   CIDSET_KOREA1,
   CIDSET_UNICODE,
   CIDSET_NUM_SETS
@@ skipping 429 matching lines @@
 
   FX_BOOL m_bInterpolate;
 
   CPDF_Document* m_pDocument;
 
   CPDF_Dictionary* m_pOC;
   CPDF_Dictionary* InitJPEG(uint8_t* pData, FX_DWORD size);
 };
 
 #endif  // CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_