Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/BC_UtilCodingConvert.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 "xfa/src/fxbarcode/BC_UtilCodingConvert.h"
-#include "xfa/src/fxbarcode/barcode.h"
 
 CBC_UtilCodingConvert::CBC_UtilCodingConvert() {}
 
 CBC_UtilCodingConvert::~CBC_UtilCodingConvert() {}
 
 void CBC_UtilCodingConvert::UnicodeToLocale(const CFX_WideString& src,
                                             CFX_ByteString& dst) {
   dst = CFX_ByteString::FromUnicode(src);
 }
 
@@ skipping 26 matching lines @@
                                          int32_t count,
                                          CFX_ByteString& dst) {
   CFX_WideString unicode = CFX_WideString::FromUTF8((const char*)src, count);
   dst = CFX_ByteString::FromUnicode(unicode);
 }
 
 void CBC_UtilCodingConvert::UnicodeToUTF8(const CFX_WideString& src,
                                           CFX_ByteString& dst) {
   dst = src.UTF8Encode();
 }