Make code compile with clang_use_chrome_plugin (part III)

xfa/fxbarcode/qrcode/BC_QRCodeReader.h

Index: xfa/fxbarcode/qrcode/BC_QRCodeReader.h
diff --git a/xfa/fxbarcode/qrcode/BC_QRCodeReader.h b/xfa/fxbarcode/qrcode/BC_QRCodeReader.h
index c11ccd1f266d59cf7866f148495c8b21011d1027..b3a72b4d18f321aa4e23f6f505133c4a8c9fbebe 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCodeReader.h
+++ b/xfa/fxbarcode/qrcode/BC_QRCodeReader.h
@@ -22,7 +22,8 @@ class CBC_QRCodeReader : public CBC_Reader {
 
  public:
   CBC_QRCodeReader();
-  virtual ~CBC_QRCodeReader();
+  ~CBC_QRCodeReader() override;
+
   CFX_ByteString Decode(CFX_DIBitmap* pBitmap,
                         int32_t hints,
                         int32_t byteModeDecode,
@@ -32,8 +33,12 @@ class CBC_QRCodeReader : public CBC_Reader {
                         int32_t byteModeDecode,
                         int32_t& e);
   static void ReleaseAll();
-  CFX_ByteString Decode(CBC_BinaryBitmap* image, int32_t hints, int32_t& e);
-  CFX_ByteString Decode(CBC_BinaryBitmap* image, int32_t& e);
+
+  // CBC_Reader
+  CFX_ByteString Decode(CBC_BinaryBitmap* image,
+                        int32_t hints,
+                        int32_t& e) override;
+  CFX_ByteString Decode(CBC_BinaryBitmap* image, int32_t& e) override;
   virtual void Init();
 };