Delete m_ExtHandle and RetainFont

core/fxge/ge/cfx_fontmapper.cpp

 // Copyright 2016 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
 
 #include "core/fxge/include/cfx_fontmapper.h"
 
 #include "core/fxge/include/ifx_systemfontinfo.h"
 #include "core/fxge/include/fx_font.h"
@@ skipping 671 matching lines @@
                        [Charset](const FaceData& face) {
                          return face.charset == static_cast<uint32_t>(Charset);
                        });
       if (it == m_FaceArray.end()) {
         return UseInternalSubst(pSubstFont, iBaseFont, italic_angle, old_weight,
                                 PitchFamily);
       }
       hFont = m_pFontInfo->GetFont(it->name.c_str());
     }
   }
-  pSubstFont->m_ExtHandle = m_pFontInfo->RetainFont(hFont);
   if (!hFont)
     return nullptr;
 
   m_pFontInfo->GetFaceName(hFont, SubstName);
   if (Charset == FXFONT_DEFAULT_CHARSET)
     m_pFontInfo->GetFontCharset(hFont, Charset);
   uint32_t ttc_size = m_pFontInfo->GetFontData(hFont, kTableTTCF, nullptr, 0);
   uint32_t font_size = m_pFontInfo->GetFontData(hFont, 0, nullptr, 0);
   if (font_size == 0 && ttc_size == 0) {
     m_pFontInfo->DeleteFont(hFont);
@@ skipping 129 matching lines @@
 int PDF_GetStandardFontName(CFX_ByteString* name) {
   AltFontName* found = static_cast<AltFontName*>(
       FXSYS_bsearch(name->c_str(), g_AltFontNames, FX_ArraySize(g_AltFontNames),
                     sizeof(AltFontName), CompareString));
   if (!found)
     return -1;
 
   *name = g_Base14FontNames[found->m_Index];
   return found->m_Index;
 }