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diff --git a/xfa/fxbarcode/datamatrix/BC_DataMatrixDataBlock.h b/xfa/fxbarcode/datamatrix/BC_DataMatrixDataBlock.h
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+++ b/xfa/fxbarcode/datamatrix/BC_DataMatrixDataBlock.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_DATAMATRIXDATABLOCK_H_
+#define XFA_FXBARCODE_DATAMATRIX_BC_DATAMATRIXDATABLOCK_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_DataMatrixVersion;
+
+class CBC_DataMatrixDataBlock {
+ public:
+  virtual ~CBC_DataMatrixDataBlock();
+
+  int32_t GetNumDataCodewords();
+  CFX_ByteArray* GetCodewords();
+
+  static CFX_PtrArray* GetDataBlocks(CFX_ByteArray* rawCodewords,
+                                     CBC_DataMatrixVersion* version,
+                                     int32_t& e);
+
+ private:
+  int32_t m_numDataCodewords;
+  CFX_ByteArray m_codewords;
+
+  CBC_DataMatrixDataBlock(int32_t numDataCodewords, CFX_ByteArray* codewords);
+};
+
+#endif  // XFA_FXBARCODE_DATAMATRIX_BC_DATAMATRIXDATABLOCK_H_