Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/qrcode/BC_QRCoderDecoder.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/barcode.h"
 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
 #include "xfa/src/fxbarcode/common/BC_CommonDecoderResult.h"
 #include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h"
 #include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRBitMatrixParser.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderDecoder.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderVersion.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRDataBlock.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h"
+
 CBC_QRCoderDecoder::CBC_QRCoderDecoder() {
   m_rsDecoder = NULL;
 }
 
 void CBC_QRCoderDecoder::Init() {
   m_rsDecoder = new CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256::QRCodeFild);
 }
 CBC_QRCoderDecoder::~CBC_QRCoderDecoder() {
   if (m_rsDecoder != NULL) {
     delete m_rsDecoder;
@@ skipping 77 matching lines @@
   for (int32_t i = 0; i < numCodewords; i++) {
     codewordsInts[i] = (int32_t)((*codewordBytes)[i] & 0xff);
   }
   int32_t numECCodewords = codewordBytes->GetSize() - numDataCodewords;
   m_rsDecoder->Decode(&codewordsInts, numECCodewords, e);
   BC_EXCEPTION_CHECK_ReturnVoid(e);
   for (int32_t k = 0; k < numDataCodewords; k++) {
     (*codewordBytes)[k] = (uint8_t)codewordsInts[k];
   }
 }