Remove unused ICodec_Jbig2Encoder

core/fxcodec/include/fx_codec.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_FXCODEC_INCLUDE_FX_CODEC_H_
 #define CORE_FXCODEC_INCLUDE_FX_CODEC_H_
 
 #include <map>
 #include <memory>
 #include <vector>
 
 #include "core/fxcrt/include/fx_basic.h"
 #include "core/fxcrt/include/fx_coordinates.h"  // For FX_RECT.
 #include "core/fxcodec/include/fx_codec_def.h"
 
 class CFX_DIBSource;
 class CJPX_Decoder;
 class CPDF_ColorSpace;
 class CPDF_StreamAcc;
 class ICodec_BasicModule;
 class ICodec_FaxModule;
 class ICodec_FlateModule;
 class ICodec_IccModule;
-class ICodec_Jbig2Encoder;
 class ICodec_Jbig2Module;
 class ICodec_JpegModule;
 class ICodec_JpxModule;
 class ICodec_ScanlineDecoder;
 
 #ifdef PDF_ENABLE_XFA
 class ICodec_BmpModule;
 class ICodec_GifModule;
 class ICodec_PngModule;
 class ICodec_ProgressiveDecoder;
@@ skipping 404 matching lines @@
                                      int32_t start_x,
                                      int32_t start_y,
                                      int32_t size_x,
                                      int32_t size_y,
                                      int32_t frames = 0,
                                      FX_BOOL bInterpol = TRUE) = 0;
 
   virtual FXCODEC_STATUS ContinueDecode(IFX_Pause* pPause = NULL) = 0;
 };
 #endif  // PDF_ENABLE_XFA
-class ICodec_Jbig2Encoder {
- public:
-  virtual ~ICodec_Jbig2Encoder() {}
-};
 
 class ICodec_IccModule {
  public:
   enum IccCS {
     IccCS_Unknown = 0,
     IccCS_XYZ,
     IccCS_Lab,
     IccCS_Luv,
     IccCS_YCbCr,
     IccCS_Yxy,
@@ skipping 86 matching lines @@
 FX_BOOL MD5ComputeID(const void* buf, uint32_t dwSize, uint8_t ID[16]);
 void FaxG4Decode(const uint8_t* src_buf,
                  uint32_t src_size,
                  int* pbitpos,
                  uint8_t* dest_buf,
                  int width,
                  int height,
                  int pitch);
 
 #endif  // CORE_FXCODEC_INCLUDE_FX_CODEC_H_