Remove implicit cast from CFX_ByteString to (const char*).

xfa/fxbarcode/oned/BC_OnedCode128Writer.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 2010 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ skipping 193 matching lines @@
   int32_t position = 0;
   patterns.Add((int32_t*)CBC_OnedCode128Reader::CODE_PATTERNS[CODE_START_C]);
   checkSum += CODE_START_C * checkWeight;
   while (position < contents.GetLength()) {
     int32_t patternIndex = 0;
     FX_CHAR ch = contents.GetAt(position);
     if (ch < '0' || ch > '9') {
       patternIndex = (int32_t)ch;
       position++;
     } else {
-      patternIndex = FXSYS_atoi(contents.Mid(position, 2));
+      patternIndex = FXSYS_atoi(contents.Mid(position, 2).c_str());
       if (contents.GetAt(position + 1) < '0' ||
           contents.GetAt(position + 1) > '9') {
         position += 1;
       } else {
         position += 2;
       }
     }
     patterns.Add((int32_t*)CBC_OnedCode128Reader::CODE_PATTERNS[patternIndex]);
     checkSum += patternIndex * checkWeight;
     if (position != 0) {
       checkWeight++;
     }
   }
   return checkSum;
 }