Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/BC_UtilRSS.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 2009 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_UtilRSS.h"
-#include "xfa/src/fxbarcode/barcode.h"
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "xfa/src/fxbarcode/utils.h"
+
 CBC_UtilRSS::CBC_UtilRSS() {}
 CBC_UtilRSS::~CBC_UtilRSS() {}
 CFX_Int32Array* CBC_UtilRSS::GetRssWidths(int32_t val,
                                           int32_t n,
                                           int32_t elements,
                                           int32_t maxWidth,
                                           FX_BOOL noNarrow) {
   CFX_Int32Array* iTemp = new CFX_Int32Array;
   iTemp->SetSize(elements);
   CBC_AutoPtr<CFX_Int32Array> widths(iTemp);
@@ skipping 116 matching lines @@
     minEven = (*widths)[twoK - 1];
   }
   if (minEven > 1) {
     for (i = 0; i < twoK; i += 2) {
       (*widths)[i] += minEven - 1;
       (*widths)[i + 1] -= minEven - 1;
     }
   }
   return widths;
 }