Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/datamatrix/BC_C40Encoder.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 2006-2007 Jeremias Maerki.
  *
  * 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_Dimension.h"
-#include "xfa/src/fxbarcode/barcode.h"
 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
 #include "xfa/src/fxbarcode/datamatrix/BC_C40Encoder.h"
 #include "xfa/src/fxbarcode/datamatrix/BC_Encoder.h"
 #include "xfa/src/fxbarcode/datamatrix/BC_EncoderContext.h"
 #include "xfa/src/fxbarcode/datamatrix/BC_HighLevelEncoder.h"
 #include "xfa/src/fxbarcode/datamatrix/BC_SymbolInfo.h"
 #include "xfa/src/fxbarcode/datamatrix/BC_SymbolShapeHint.h"
+
 CBC_C40Encoder::CBC_C40Encoder() {}
 CBC_C40Encoder::~CBC_C40Encoder() {}
 int32_t CBC_C40Encoder::getEncodingMode() {
   return C40_ENCODATION;
 }
 void CBC_C40Encoder::Encode(CBC_EncoderContext& context, int32_t& e) {
   CFX_WideString buffer;
   while (context.hasMoreCharacters()) {
     FX_WCHAR c = context.getCurrentChar();
     context.m_pos++;
@@ skipping 147 matching lines @@
   FX_WCHAR c1 = sb.GetAt(startPos);
   FX_WCHAR c2 = sb.GetAt(startPos + 1);
   FX_WCHAR c3 = sb.GetAt(startPos + 2);
   int32_t v = (1600 * c1) + (40 * c2) + c3 + 1;
   FX_WCHAR cw1 = (FX_WCHAR)(v / 256);
   FX_WCHAR cw2 = (FX_WCHAR)(v % 256);
   CFX_WideString b1(cw1);
   CFX_WideString b2(cw2);
   return b1 + b2;
 }