Remove include only barcode.h and IWYU.

xfa/src/fxbarcode/datamatrix/BC_TextEncoder.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"
 #include "xfa/src/fxbarcode/datamatrix/BC_TextEncoder.h"
+
 CBC_TextEncoder::CBC_TextEncoder() {}
 CBC_TextEncoder::~CBC_TextEncoder() {}
 int32_t CBC_TextEncoder::getEncodingMode() {
   return TEXT_ENCODATION;
 }
 int32_t CBC_TextEncoder::encodeChar(FX_WCHAR c,
                                     CFX_WideString& sb,
                                     int32_t& e) {
   if (c == ' ') {
     sb += (FX_WCHAR)'\3';
@@ skipping 46 matching lines @@
     sb += (FX_WCHAR)'\1';
     sb += (FX_WCHAR)0x001e;
     int32_t len = 2;
     len += encodeChar((FX_WCHAR)(c - 128), sb, e);
     BC_EXCEPTION_CHECK_ReturnValue(e, -1);
     return len;
   }
   CBC_HighLevelEncoder::illegalCharacter(c, e);
   return -1;
 }