Remove duplicated charset definitions

core/fxge/apple/fx_mac_imp.cpp

 // 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
 
 #include "core/fxge/apple/apple_int.h"
 #include "core/fxge/ge/cfx_folderfontinfo.h"
 #include "core/fxge/include/cfx_gemodule.h"
 #include "core/fxge/include/ifx_systemfontinfo.h"
@@ skipping 89 matching lines @@
   if (charset == FXFONT_ANSI_CHARSET || charset == FXFONT_SYMBOL_CHARSET)
     return nullptr;
 
   switch (charset) {
     case FXFONT_SHIFTJIS_CHARSET:
       GetJapanesePreference(&face, weight, pitch_family);
       break;
     case FXFONT_GB2312_CHARSET:
       face = "STSong";
       break;
-    case FXFONT_HANGEUL_CHARSET:
+    case FXFONT_HANGUL_CHARSET:
       face = "AppleMyungjo";
       break;
     case FXFONT_CHINESEBIG5_CHARSET:
       face = "LiSong Pro Light";
   }
   it = m_FontList.find(face);
   return it != m_FontList.end() ? it->second : nullptr;
 }
 
 }  // namespace
@@ skipping 11 matching lines @@
   m_pPlatformData = new CApplePlatform;
   m_pFontMgr->SetSystemFontInfo(IFX_SystemFontInfo::CreateDefault(nullptr));
 }
 
 void CFX_GEModule::DestroyPlatform() {
   delete reinterpret_cast<CApplePlatform*>(m_pPlatformData);
   m_pPlatformData = nullptr;
 }
 
 #endif  // _FX_OS_ == _FX_MACOSX_