FX_CMapDwordToDword considered harmful.

core/src/fpdfapi/fpdf_font/ttgsubtable.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_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
 #define CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
 
 #include "../../../include/fxge/fx_freetype.h"
@@ skipping 323 matching lines @@
   TT_int32_t GetInt32(FT_Bytes& p) const {
     TT_uint32_t ret = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
     p += 4;
     return *(TT_int32_t*)&ret;
   }
   TT_uint32_t GetUInt32(FT_Bytes& p) const {
     TT_uint32_t ret = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
     p += 4;
     return ret;
   }
-  CFX_CMapDWordToDWord m_featureMap;
+  std::map<FX_DWORD, FX_DWORD> m_featureMap;
   FX_BOOL m_bFeautureMapLoad;
   bool loaded;
   struct tt_gsub_header header;
   struct TScriptList ScriptList;
   struct TFeatureList FeatureList;
   struct TLookupList LookupList;
 };
 class CFX_GSUBTable final : public IFX_GSUBTable {
  public:
   ~CFX_GSUBTable() override {}
   virtual FX_BOOL GetVerticalGlyph(FX_DWORD glyphnum,
                                    FX_DWORD* vglyphnum) override;
 
   CFX_CTTGSUBTable m_GsubImp;
 };
 
 #endif  // CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_