Make code compile with clang_use_chrome_plugin (part III)

xfa/fxbarcode/oned/BC_OnedCode128Reader.h

 // 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_ONED_BC_ONEDCODE128READER_H_
 #define XFA_FXBARCODE_ONED_BC_ONEDCODE128READER_H_
 
 #include "xfa/fxbarcode/oned/BC_OneDReader.h"
 
 class CBC_CommonBitArray;
 
 class CBC_OnedCode128Reader : public CBC_OneDReader {
  public:
   CBC_OnedCode128Reader();
-  virtual ~CBC_OnedCode128Reader();
-  virtual CFX_ByteString DecodeRow(int32_t rowNumber,
-                                   CBC_CommonBitArray* row,
-                                   int32_t hints,
-                                   int32_t& e);
+  ~CBC_OnedCode128Reader() override;
+
+  // CBC_OneDReader
+  CFX_ByteString DecodeRow(int32_t rowNumber,
+                           CBC_CommonBitArray* row,
+                           int32_t hints,
+                           int32_t& e) override;
 
   static const int32_t CODE_PATTERNS[107][7];
 
  private:
   static const int32_t MAX_AVG_VARIANCE = (int32_t)(256 * 0.25f);
   static const int32_t MAX_INDIVIDUAL_VARIANCE = (int32_t)(256 * 0.7f);
 
   static const int32_t CODE_SHIFT = 98;
   static const int32_t CODE_CODE_C = 99;
   static const int32_t CODE_CODE_B = 100;
@@ skipping 10 matching lines @@
   static const int32_t CODE_STOP = 106;
 
   CFX_Int32Array* FindStartPattern(CBC_CommonBitArray* row, int32_t& e);
   int32_t DecodeCode(CBC_CommonBitArray* row,
                      CFX_Int32Array* counters,
                      int32_t rowOffset,
                      int32_t& e);
 };
 
 #endif  // XFA_FXBARCODE_ONED_BC_ONEDCODE128READER_H_