Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/qrcode/BC_QRDataBlock.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 2007 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/barcode.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderECB.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderECBlocks.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderVersion.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRDataBlock.h"
+#include "xfa/src/fxbarcode/utils.h"
+
 CBC_QRDataBlock::CBC_QRDataBlock(int32_t numDataCodewords,
                                  CFX_ByteArray* codewords)
     : m_numDataCodewords(numDataCodewords), m_codewords(codewords) {}
 CBC_QRDataBlock::~CBC_QRDataBlock() {
   if (m_codewords != NULL) {
     delete m_codewords;
     m_codewords = NULL;
   }
 }
 int32_t CBC_QRDataBlock::GetNumDataCodewords() {
@@ skipping 64 matching lines @@
   int32_t max = ((CBC_QRDataBlock*)(*result)[0])->m_codewords->GetSize();
   for (i = shorterBlocksNumDataCodewords; i < max; i++) {
     for (int32_t y = 0; y < numResultBlocks; y++) {
       int32_t iOffset = y < longerBlocksStartAt ? i : i + 1;
       (*(((CBC_QRDataBlock*)(*result)[y])->m_codewords))[iOffset] =
           (*rawCodewords)[rawCodewordsOffset++];
     }
   }
   return result.release();
 }