Fix lint bugs.

xfa/fxbarcode/cbc_code39.h

 // Copyright 2016 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_CBC_CODE39_H_
 #define XFA_FXBARCODE_CBC_CODE39_H_
 
 #include "core/fxcrt/include/fx_string.h"
 #include "core/fxcrt/include/fx_system.h"
 #include "core/fxge/include/fx_dib.h"
 #include "xfa/fxbarcode/cbc_onecode.h"
 
 class CBC_Code39 : public CBC_OneCode {
  public:
   CBC_Code39();
   explicit CBC_Code39(FX_BOOL usingCheckDigit);
   CBC_Code39(FX_BOOL usingCheckDigit, FX_BOOL extendedMode);
-  virtual ~CBC_Code39();
+  ~CBC_Code39() override;
 
-  FX_BOOL Encode(const CFX_WideStringC& contents, FX_BOOL isDevice, int32_t& e);
-  CFX_WideString Decode(uint8_t* buf, int32_t width, int32_t hight, int32_t& e);
-  CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& e);
+  // CBC_OneCode:
+  FX_BOOL Encode(const CFX_WideStringC& contents,
+                 FX_BOOL isDevice,
+                 int32_t& e) override;
+  CFX_WideString Decode(uint8_t* buf,
+                        int32_t width,
+                        int32_t height,
+                        int32_t& e) override;
+  CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& e) override;
+  FX_BOOL RenderDevice(CFX_RenderDevice* device,
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
+  BC_TYPE GetType() override { return BC_CODE39; }
 
-  FX_BOOL RenderDevice(CFX_RenderDevice* device,
-                       const CFX_Matrix* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-
-  BC_TYPE GetType() { return BC_CODE39; }
   FX_BOOL SetTextLocation(BC_TEXT_LOC location);
   FX_BOOL SetWideNarrowRatio(int32_t ratio);
 
  private:
   CFX_WideString m_renderContents;
 };
 
 #endif  // XFA_FXBARCODE_CBC_CODE39_H_