Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/common/BC_WhiteRectangleDetector.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 2010 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_ResultPoint.h"
-#include "xfa/src/fxbarcode/barcode.h"
 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
 #include "xfa/src/fxbarcode/common/BC_WhiteRectangleDetector.h"
+#include "xfa/src/fxbarcode/utils.h"
+
 const int32_t CBC_WhiteRectangleDetector::INIT_SIZE = 30;
 const int32_t CBC_WhiteRectangleDetector::CORR = 1;
+
 CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
     CBC_CommonBitMatrix* image) {
   m_image = image;
   m_height = image->GetHeight();
   m_width = image->GetWidth();
   m_leftInit = (m_width - INIT_SIZE) >> 1;
   m_rightInit = (m_width + INIT_SIZE) >> 1;
   m_upInit = (m_height - INIT_SIZE) >> 1;
   m_downInit = (m_height + INIT_SIZE) >> 1;
 }
@@ skipping 212 matching lines @@
     }
   } else {
     for (int32_t y = a; y <= b; y++) {
       if (m_image->Get(fixed, y)) {
         return TRUE;
       }
     }
   }
   return FALSE;
 }