Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/datamatrix/BC_Base256Encoder.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/datamatrix/BC_Base256Encoder.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_Base256Encoder::CBC_Base256Encoder() {}
 CBC_Base256Encoder::~CBC_Base256Encoder() {}
 int32_t CBC_Base256Encoder::getEncodingMode() {
   return BASE256_ENCODATION;
 }
 void CBC_Base256Encoder::Encode(CBC_EncoderContext& context, int32_t& e) {
   CFX_WideString buffer;
   buffer += (FX_WCHAR)'\0';
   while (context.hasMoreCharacters()) {
     FX_WCHAR c = context.getCurrentChar();
@@ skipping 42 matching lines @@
 FX_WCHAR CBC_Base256Encoder::randomize255State(FX_WCHAR ch,
                                                int32_t codewordPosition) {
   int32_t pseudoRandom = ((149 * codewordPosition) % 255) + 1;
   int32_t tempVariable = ch + pseudoRandom;
   if (tempVariable <= 255) {
     return (FX_WCHAR)tempVariable;
   } else {
     return (FX_WCHAR)(tempVariable - 256);
   }
 }