Cleanup forward declarations.

core/include/fxge/fx_font.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_FXGE_FX_FONT_H_
 #define CORE_INCLUDE_FXGE_FX_FONT_H_
 
 #include <map>
 #include <memory>
 #include <vector>
 
 #include "core/include/fxcrt/fx_system.h"
 #include "core/include/fxge/fx_dib.h"
 
 typedef struct FT_FaceRec_* FXFT_Face;
 typedef void* FXFT_Library;
 
 class CFX_FaceCache;
 class CFX_FontFaceInfo;
 class CFX_FontMapper;
 class CFX_PathData;
 class CFX_SizeGlyphCache;
 class CFX_SubstFont;
 class CTTFontDesc;
-class IFX_FontEncoding;
 class IFX_SystemFontInfo;
 
 #define FXFONT_FIXED_PITCH 0x01
 #define FXFONT_SERIF 0x02
 #define FXFONT_SYMBOLIC 0x04
 #define FXFONT_SCRIPT 0x08
 #define FXFONT_ITALIC 0x40
 #define FXFONT_BOLD 0x40000
 #define FXFONT_USEEXTERNATTR 0x80000
 #define FXFONT_CIDFONT 0x100000
@@ skipping 499 matching lines @@
 
  protected:
   virtual ~IFX_GSUBTable() {}
 };
 
 CFX_ByteString GetNameFromTT(const uint8_t* name_table, FX_DWORD name);
 
 int PDF_GetStandardFontName(CFX_ByteString* name);
 
 #endif  // CORE_INCLUDE_FXGE_FX_FONT_H_