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diff --git a/xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.h b/xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.h
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+++ b/xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.h
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+// 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
+
+#ifndef XFA_FXBARCODE_DATAMATRIX_BC_DATAMATRIXDECODER_H_
+#define XFA_FXBARCODE_DATAMATRIX_BC_DATAMATRIXDECODER_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_ReedSolomonDecoder;
+class CBC_CommonDecoderResult;
+class CBC_CommonBitMatrix;
+
+class CBC_DataMatrixDecoder {
+ public:
+  CBC_DataMatrixDecoder();
+  virtual ~CBC_DataMatrixDecoder();
+  CBC_CommonDecoderResult* Decode(CBC_CommonBitMatrix* bits, int32_t& e);
+  virtual void Init();
+
+ private:
+  void CorrectErrors(CFX_ByteArray& codewordBytes,
+                     int32_t numDataCodewords,
+                     int32_t& e);
+  CBC_ReedSolomonDecoder* m_rsDecoder;
+};
+
+#endif  // XFA_FXBARCODE_DATAMATRIX_BC_DATAMATRIXDECODER_H_