Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/pdf417/BC_PDF417BarcodeValue.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 2013 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/pdf417/BC_PDF417BarcodeValue.h"
 #include "xfa/src/fxbarcode/pdf417/BC_PDF417Common.h"
+
 CBC_BarcodeValue::CBC_BarcodeValue() {}
 CBC_BarcodeValue::~CBC_BarcodeValue() {}
 void CBC_BarcodeValue::setValue(int32_t value) {
   int32_t confidence = 0;
   for (int32_t i = 0; i < m_keys.GetSize(); i++) {
     if (m_keys.GetAt(i) == value) {
       confidence = m_values.GetAt(i);
       m_values.SetAt(i, confidence + 1);
       return;
     }
@@ skipping 16 matching lines @@
   }
   return result;
 }
 int32_t CBC_BarcodeValue::getConfidence(int32_t value) {
   for (int32_t i = 0; i < m_keys.GetSize(); i++)
     if (m_keys.GetAt(i) == value) {
       return m_values.GetAt(i);
     }
   return -1;
 }