Clean compiling warnings on Linux (part2)

xfa/src/fxbarcode/pdf417/BC_PDF417Writer.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
 // Original code is licensed as follows:
 /*
  * Copyright 2012 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ skipping 26 matching lines @@
 FX_BOOL CBC_PDF417Writer::SetErrorCorrectionLevel(int32_t level) {
   if (level < 0 || level > 8) {
     return FALSE;
   }
   m_iCorrectLevel = level;
   return TRUE;
 }
 void CBC_PDF417Writer::SetTruncated(FX_BOOL truncated) {
   m_bTruncated = truncated;
 }
-uint8_t* CBC_PDF417Writer::Encode(const CFX_ByteString& contents,
-                                  BCFORMAT format,
-                                  int32_t& outWidth,
-                                  int32_t& outHeight,
-                                  int32_t& e) {
-  if (format != BCFORMAT_PDF_417) {
-    return NULL;
-  }
-  CFX_WideString encodeContents = contents.UTF8Decode();
-  return Encode(encodeContents, outWidth, outHeight, e);
-}
-uint8_t* CBC_PDF417Writer::Encode(const CFX_ByteString& contents,
-                                  BCFORMAT format,
-                                  int32_t& outWidth,
-                                  int32_t& outHeight,
-                                  int32_t hints,
-                                  int32_t& e) {
-  return NULL;
-}
 uint8_t* CBC_PDF417Writer::Encode(const CFX_WideString& contents,
                                   int32_t& outWidth,
                                   int32_t& outHeight,
                                   int32_t& e) {
   CBC_PDF417 encoder;
   int32_t col = (m_Width / m_ModuleWidth - 69) / 17;
   int32_t row = m_Height / (m_ModuleWidth * 20);
   if (row >= 3 && row <= 90 && col >= 1 && col <= 30) {
     encoder.setDimensions(col, col, row, row);
   } else if (col >= 1 && col <= 30) {
@@ skipping 49 matching lines @@
                                    int32_t width) {
   CFX_ByteArray temp;
   temp.Copy(bitarray);
   for (int32_t ii = 0; ii < height; ii++) {
     int32_t inverseii = height - ii - 1;
     for (int32_t jj = 0; jj < width; jj++) {
       bitarray[jj * height + inverseii] = temp[ii * width + jj];
     }
   }
 }