Revert postscript code removal.

core/fxcodec/codec/fx_codec.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/fxcodec/fx_codec.h"
 
 #include <cmath>
 #include <memory>
@@ skipping 79 matching lines @@
       return true;
     }
   }
   return false;
 }
 
 uint8_t* CCodec_ScanlineDecoder::ReadNextLine() {
   return v_GetNextLine();
 }
 
+bool CCodec_BasicModule::RunLengthEncode(const uint8_t* src_buf,
+                                         uint32_t src_size,
+                                         uint8_t** dest_buf,
+                                         uint32_t* dest_size) {
+  return false;
+}
+
+bool CCodec_BasicModule::A85Encode(const uint8_t* src_buf,
+                                   uint32_t src_size,
+                                   uint8_t** dest_buf,
+                                   uint32_t* dest_size) {
+  return false;
+}
+
 #ifdef PDF_ENABLE_XFA
 CFX_DIBAttribute::CFX_DIBAttribute()
     : m_nXDPI(-1),
       m_nYDPI(-1),
       m_fAspectRatio(-1.0f),
       m_wDPIUnit(0),
       m_nGifLeft(0),
       m_nGifTop(0),
       m_pGifLocalPalette(nullptr),
       m_nGifLocalPalNum(0),
@@ skipping 199 matching lines @@
                                            int width,
                                            int height,
                                            int nComps,
                                            int bpc) {
   auto pDecoder = pdfium::MakeUnique<CCodec_RLScanlineDecoder>();
   if (!pDecoder->Create(src_buf, src_size, width, height, nComps, bpc))
     return nullptr;
 
   return std::move(pDecoder);
 }