Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/oned/BC_OnedEAN8Reader.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 2008 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 #include "xfa/src/fxbarcode/BC_Reader.h"
-#include "xfa/src/fxbarcode/barcode.h"
 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
 #include "xfa/src/fxbarcode/oned/BC_OneDReader.h"
 #include "xfa/src/fxbarcode/oned/BC_OneDimReader.h"
 #include "xfa/src/fxbarcode/oned/BC_OnedEAN8Reader.h"
+#include "xfa/src/fxbarcode/utils.h"
+
 CBC_OnedEAN8Reader::CBC_OnedEAN8Reader() {}
 CBC_OnedEAN8Reader::~CBC_OnedEAN8Reader() {}
 int32_t CBC_OnedEAN8Reader::DecodeMiddle(CBC_CommonBitArray* row,
                                          CFX_Int32Array* startRange,
                                          CFX_ByteString& resultResult,
                                          int32_t& e) {
   CFX_Int32Array counters;
   counters.Add(0);
   counters.Add(0);
   counters.Add(0);
@@ skipping 36 matching lines @@
         DecodeDigit(row, &counters, rowOffset,
                     &(CBC_OneDimReader::L_PATTERNS[0][0]), 10, e);
     BC_EXCEPTION_CHECK_ReturnValue(e, 0);
     resultResult += (FX_CHAR)('0' + bestMatch);
     for (int32_t i = 0; i < counters.GetSize(); i++) {
       rowOffset += counters[i];
     }
   }
   return rowOffset;
 }