diff --git a/xfa/fxbarcode/BC_BufferedImageLuminanceSource.cpp b/xfa/fxbarcode/BC_BufferedImageLuminanceSource.cpp
index 982cc9c..814f300 100644
--- a/xfa/fxbarcode/BC_BufferedImageLuminanceSource.cpp
+++ b/xfa/fxbarcode/BC_BufferedImageLuminanceSource.cpp
@@ -135,8 +135,8 @@
 }
 
 CFX_ByteArray* CBC_BufferedImageLuminanceSource::GetMatrix() {
-  CFX_ByteArray* matirx = new CFX_ByteArray();
-  matirx->SetSize(m_bytesPerLine * m_height);
+  CFX_ByteArray* matrix = new CFX_ByteArray();
+  matrix->SetSize(m_bytesPerLine * m_height);
   int32_t* rgb = (int32_t*)m_pBitmap->GetBuffer();
   int32_t y;
   for (y = 0; y < m_height; y++) {
@@ -148,8 +148,8 @@
           (306 * ((pixel >> 16) & 0xFF) + 601 * ((pixel >> 8) & 0xFF) +
            117 * (pixel & 0xFF)) >>
           10;
-      (*matirx)[offset + x] = (uint8_t)luminance;
+      (*matrix)[offset + x] = (uint8_t)luminance;
     }
   }
-  return matirx;
+  return matrix;
 }
diff --git a/xfa/fxbarcode/cbc_codabar.cpp b/xfa/fxbarcode/cbc_codabar.cpp
index fad026d..3bdc6c1 100644
--- a/xfa/fxbarcode/cbc_codabar.cpp
+++ b/xfa/fxbarcode/cbc_codabar.cpp
@@ -84,13 +84,13 @@
 }
 
 FX_BOOL CBC_Codabar::RenderDevice(CFX_RenderDevice* device,
-                                  const CFX_Matrix* matirx,
+                                  const CFX_Matrix* matrix,
                                   int32_t& e) {
   CFX_WideString renderCon =
       ((CBC_OnedCodaBarWriter*)m_pBCWriter)
           ->encodedContents(m_renderContents.AsStringC());
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, renderCon.AsStringC(), e);
+      ->RenderDeviceResult(device, matrix, renderCon.AsStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
@@ -107,7 +107,7 @@
 
 CFX_WideString CBC_Codabar::Decode(uint8_t* buf,
                                    int32_t width,
-                                   int32_t hight,
+                                   int32_t height,
                                    int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_codabar.h b/xfa/fxbarcode/cbc_codabar.h
index c375ccc..9684b58 100644
--- a/xfa/fxbarcode/cbc_codabar.h
+++ b/xfa/fxbarcode/cbc_codabar.h
@@ -17,15 +17,19 @@
   CBC_Codabar();
   ~CBC_Codabar() override;
 
-  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 hight, int32_t& e) override;
+  // 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* matirx,
+                       const CFX_Matrix* matrix,
                        int32_t& e) override;
   FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
-
   BC_TYPE GetType() override { return BC_CODABAR; }
 
   FX_BOOL SetStartChar(FX_CHAR start);
diff --git a/xfa/fxbarcode/cbc_code128.cpp b/xfa/fxbarcode/cbc_code128.cpp
index 98490f2..039e372 100644
--- a/xfa/fxbarcode/cbc_code128.cpp
+++ b/xfa/fxbarcode/cbc_code128.cpp
@@ -73,10 +73,10 @@
 }
 
 FX_BOOL CBC_Code128::RenderDevice(CFX_RenderDevice* device,
-                                  const CFX_Matrix* matirx,
+                                  const CFX_Matrix* matrix,
                                   int32_t& e) {
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, m_renderContents.AsStringC(), e);
+      ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
@@ -90,7 +90,7 @@
 
 CFX_WideString CBC_Code128::Decode(uint8_t* buf,
                                    int32_t width,
-                                   int32_t hight,
+                                   int32_t height,
                                    int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_code128.h b/xfa/fxbarcode/cbc_code128.h
index d351a9a..c5aa8e1 100644
--- a/xfa/fxbarcode/cbc_code128.h
+++ b/xfa/fxbarcode/cbc_code128.h
@@ -15,17 +15,21 @@
 class CBC_Code128 : public CBC_OneCode {
  public:
   explicit CBC_Code128(BC_TYPE type);
-  virtual ~CBC_Code128();
+  ~CBC_Code128() override;
 
-  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 hight, int32_t& e) override;
+  // 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* matirx,
+                       const CFX_Matrix* matrix,
                        int32_t& e) override;
   FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
-
   BC_TYPE GetType() override { return BC_CODE128; }
 
   FX_BOOL SetTextLocation(BC_TEXT_LOC loction);
diff --git a/xfa/fxbarcode/cbc_code39.cpp b/xfa/fxbarcode/cbc_code39.cpp
index 627ea4d..516b34e 100644
--- a/xfa/fxbarcode/cbc_code39.cpp
+++ b/xfa/fxbarcode/cbc_code39.cpp
@@ -75,13 +75,13 @@
 }
 
 FX_BOOL CBC_Code39::RenderDevice(CFX_RenderDevice* device,
-                                 const CFX_Matrix* matirx,
+                                 const CFX_Matrix* matrix,
                                  int32_t& e) {
   CFX_WideString renderCon =
       ((CBC_OnedCode39Writer*)m_pBCWriter)
           ->encodedContents(m_renderContents.AsStringC(), e);
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, renderCon.AsStringC(), e);
+      ->RenderDeviceResult(device, matrix, renderCon.AsStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
@@ -98,7 +98,7 @@
 
 CFX_WideString CBC_Code39::Decode(uint8_t* buf,
                                   int32_t width,
-                                  int32_t hight,
+                                  int32_t height,
                                   int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_code39.h b/xfa/fxbarcode/cbc_code39.h
index 3853da1..d6dad7d 100644
--- a/xfa/fxbarcode/cbc_code39.h
+++ b/xfa/fxbarcode/cbc_code39.h
@@ -17,18 +17,23 @@
   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* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
+                       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; }
 
-  BC_TYPE GetType() { return BC_CODE39; }
   FX_BOOL SetTextLocation(BC_TEXT_LOC location);
   FX_BOOL SetWideNarrowRatio(int32_t ratio);
 
diff --git a/xfa/fxbarcode/cbc_codebase.h b/xfa/fxbarcode/cbc_codebase.h
index 317e0ec..2124f75 100644
--- a/xfa/fxbarcode/cbc_codebase.h
+++ b/xfa/fxbarcode/cbc_codebase.h
@@ -26,12 +26,12 @@
                          FX_BOOL isDevice,
                          int32_t& e) = 0;
   virtual FX_BOOL RenderDevice(CFX_RenderDevice* device,
-                               const CFX_Matrix* matirx,
+                               const CFX_Matrix* matrix,
                                int32_t& e) = 0;
   virtual FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) = 0;
   virtual CFX_WideString Decode(uint8_t* buf,
                                 int32_t width,
-                                int32_t hight,
+                                int32_t height,
                                 int32_t& e) = 0;
   virtual CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& e) = 0;
 
diff --git a/xfa/fxbarcode/cbc_datamatrix.cpp b/xfa/fxbarcode/cbc_datamatrix.cpp
index c23aa33..63385aa 100644
--- a/xfa/fxbarcode/cbc_datamatrix.cpp
+++ b/xfa/fxbarcode/cbc_datamatrix.cpp
@@ -53,9 +53,9 @@
 }
 
 FX_BOOL CBC_DataMatrix::RenderDevice(CFX_RenderDevice* device,
-                                     const CFX_Matrix* matirx,
+                                     const CFX_Matrix* matrix,
                                      int32_t& e) {
-  ((CBC_TwoDimWriter*)m_pBCWriter)->RenderDeviceResult(device, matirx);
+  ((CBC_TwoDimWriter*)m_pBCWriter)->RenderDeviceResult(device, matrix);
   return TRUE;
 }
 
@@ -67,7 +67,7 @@
 
 CFX_WideString CBC_DataMatrix::Decode(uint8_t* buf,
                                       int32_t width,
-                                      int32_t hight,
+                                      int32_t height,
                                       int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_datamatrix.h b/xfa/fxbarcode/cbc_datamatrix.h
index 496df6e..7cd4875 100644
--- a/xfa/fxbarcode/cbc_datamatrix.h
+++ b/xfa/fxbarcode/cbc_datamatrix.h
@@ -15,18 +15,22 @@
 class CBC_DataMatrix : public CBC_CodeBase {
  public:
   CBC_DataMatrix();
-  virtual ~CBC_DataMatrix();
+  ~CBC_DataMatrix() 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* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-
-  BC_TYPE GetType() { return BC_DATAMATRIX; }
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
+  BC_TYPE GetType() override { return BC_DATAMATRIX; }
 };
 
 #endif  // XFA_FXBARCODE_CBC_DATAMATRIX_H_
diff --git a/xfa/fxbarcode/cbc_ean13.cpp b/xfa/fxbarcode/cbc_ean13.cpp
index c51e262..5f33f4c 100644
--- a/xfa/fxbarcode/cbc_ean13.cpp
+++ b/xfa/fxbarcode/cbc_ean13.cpp
@@ -81,10 +81,10 @@
 }
 
 FX_BOOL CBC_EAN13::RenderDevice(CFX_RenderDevice* device,
-                                const CFX_Matrix* matirx,
+                                const CFX_Matrix* matrix,
                                 int32_t& e) {
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, m_renderContents.AsStringC(), e);
+      ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
@@ -98,7 +98,7 @@
 
 CFX_WideString CBC_EAN13::Decode(uint8_t* buf,
                                  int32_t width,
-                                 int32_t hight,
+                                 int32_t height,
                                  int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_ean13.h b/xfa/fxbarcode/cbc_ean13.h
index 7c33f51..93abab2 100644
--- a/xfa/fxbarcode/cbc_ean13.h
+++ b/xfa/fxbarcode/cbc_ean13.h
@@ -15,18 +15,22 @@
 class CBC_EAN13 : public CBC_OneCode {
  public:
   CBC_EAN13();
-  virtual ~CBC_EAN13();
+  ~CBC_EAN13() 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* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-
-  BC_TYPE GetType() { return BC_EAN13; }
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
+  BC_TYPE GetType() override { return BC_EAN13; }
 
  private:
   CFX_WideString Preprocess(const CFX_WideStringC& contents);
diff --git a/xfa/fxbarcode/cbc_ean8.cpp b/xfa/fxbarcode/cbc_ean8.cpp
index 1128b84..e92605f 100644
--- a/xfa/fxbarcode/cbc_ean8.cpp
+++ b/xfa/fxbarcode/cbc_ean8.cpp
@@ -80,10 +80,10 @@
 }
 
 FX_BOOL CBC_EAN8::RenderDevice(CFX_RenderDevice* device,
-                               const CFX_Matrix* matirx,
+                               const CFX_Matrix* matrix,
                                int32_t& e) {
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, m_renderContents.AsStringC(), e);
+      ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
@@ -97,7 +97,7 @@
 
 CFX_WideString CBC_EAN8::Decode(uint8_t* buf,
                                 int32_t width,
-                                int32_t hight,
+                                int32_t height,
                                 int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_ean8.h b/xfa/fxbarcode/cbc_ean8.h
index 82fe0c1..d9cd057 100644
--- a/xfa/fxbarcode/cbc_ean8.h
+++ b/xfa/fxbarcode/cbc_ean8.h
@@ -15,18 +15,22 @@
 class CBC_EAN8 : public CBC_OneCode {
  public:
   CBC_EAN8();
-  virtual ~CBC_EAN8();
+  ~CBC_EAN8() 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* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-
-  BC_TYPE GetType() { return BC_EAN8; }
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
+  BC_TYPE GetType() override { return BC_EAN8; }
 
  private:
   CFX_WideString Preprocess(const CFX_WideStringC& contents);
diff --git a/xfa/fxbarcode/cbc_onecode.h b/xfa/fxbarcode/cbc_onecode.h
index 7c32cf8..6e447cc 100644
--- a/xfa/fxbarcode/cbc_onecode.h
+++ b/xfa/fxbarcode/cbc_onecode.h
@@ -18,24 +18,7 @@
 class CBC_OneCode : public CBC_CodeBase {
  public:
   CBC_OneCode();
-  virtual ~CBC_OneCode();
-
-  virtual BC_TYPE GetType() = 0;
-
-  virtual FX_BOOL Encode(const CFX_WideStringC& contents,
-                         FX_BOOL isDevice,
-                         int32_t& e) = 0;
-  virtual CFX_WideString Decode(uint8_t* buf,
-                                int32_t width,
-                                int32_t hight,
-                                int32_t& e) = 0;
-  virtual CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& e) = 0;
-
-  virtual FX_BOOL RenderDevice(CFX_RenderDevice* device,
-                               const CFX_Matrix* matirx,
-                               int32_t& e) = 0;
-  virtual FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) = 0;
-
+  ~CBC_OneCode() override;
 
   virtual FX_BOOL CheckContentValidity(const CFX_WideStringC& contents);
   virtual CFX_WideString FilterContents(const CFX_WideStringC& contents);
diff --git a/xfa/fxbarcode/cbc_pdf417i.cpp b/xfa/fxbarcode/cbc_pdf417i.cpp
index 7cb8275..0b7a558 100644
--- a/xfa/fxbarcode/cbc_pdf417i.cpp
+++ b/xfa/fxbarcode/cbc_pdf417i.cpp
@@ -61,9 +61,9 @@
 }
 
 FX_BOOL CBC_PDF417I::RenderDevice(CFX_RenderDevice* device,
-                                  const CFX_Matrix* matirx,
+                                  const CFX_Matrix* matrix,
                                   int32_t& e) {
-  ((CBC_TwoDimWriter*)m_pBCWriter)->RenderDeviceResult(device, matirx);
+  ((CBC_TwoDimWriter*)m_pBCWriter)->RenderDeviceResult(device, matrix);
   return TRUE;
 }
 
@@ -75,7 +75,7 @@
 
 CFX_WideString CBC_PDF417I::Decode(uint8_t* buf,
                                    int32_t width,
-                                   int32_t hight,
+                                   int32_t height,
                                    int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_pdf417i.h b/xfa/fxbarcode/cbc_pdf417i.h
index f38b416..0658ff7 100644
--- a/xfa/fxbarcode/cbc_pdf417i.h
+++ b/xfa/fxbarcode/cbc_pdf417i.h
@@ -15,18 +15,22 @@
 class CBC_PDF417I : public CBC_CodeBase {
  public:
   CBC_PDF417I();
-  virtual ~CBC_PDF417I();
+  ~CBC_PDF417I() 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_CodeBase::
+  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* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-
-  BC_TYPE GetType() { return BC_PDF417; }
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
+  BC_TYPE GetType() override { return BC_PDF417; }
 
   FX_BOOL SetErrorCorrectionLevel(int32_t level);
   void SetTruncated(FX_BOOL truncated);
diff --git a/xfa/fxbarcode/cbc_qrcode.cpp b/xfa/fxbarcode/cbc_qrcode.cpp
index 41c252e..8faf5ad 100644
--- a/xfa/fxbarcode/cbc_qrcode.cpp
+++ b/xfa/fxbarcode/cbc_qrcode.cpp
@@ -71,9 +71,9 @@
 }
 
 FX_BOOL CBC_QRCode::RenderDevice(CFX_RenderDevice* device,
-                                 const CFX_Matrix* matirx,
+                                 const CFX_Matrix* matrix,
                                  int32_t& e) {
-  ((CBC_TwoDimWriter*)m_pBCWriter)->RenderDeviceResult(device, matirx);
+  ((CBC_TwoDimWriter*)m_pBCWriter)->RenderDeviceResult(device, matrix);
   return TRUE;
 }
 
@@ -85,7 +85,7 @@
 
 CFX_WideString CBC_QRCode::Decode(uint8_t* buf,
                                   int32_t width,
-                                  int32_t hight,
+                                  int32_t height,
                                   int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_qrcode.h b/xfa/fxbarcode/cbc_qrcode.h
index d77a23d..4038164 100644
--- a/xfa/fxbarcode/cbc_qrcode.h
+++ b/xfa/fxbarcode/cbc_qrcode.h
@@ -15,18 +15,22 @@
 class CBC_QRCode : public CBC_CodeBase {
  public:
   CBC_QRCode();
-  virtual ~CBC_QRCode();
+  ~CBC_QRCode() 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_CodeBase:
+  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* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-
-  BC_TYPE GetType() { return BC_QR_CODE; }
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) override;
+  BC_TYPE GetType() override { return BC_QR_CODE; }
 
   FX_BOOL SetVersion(int32_t version);
   FX_BOOL SetErrorCorrectionLevel(int32_t level);
diff --git a/xfa/fxbarcode/cbc_upca.cpp b/xfa/fxbarcode/cbc_upca.cpp
index 38d4819..2c60c92 100644
--- a/xfa/fxbarcode/cbc_upca.cpp
+++ b/xfa/fxbarcode/cbc_upca.cpp
@@ -83,10 +83,10 @@
 }
 
 FX_BOOL CBC_UPCA::RenderDevice(CFX_RenderDevice* device,
-                               const CFX_Matrix* matirx,
+                               const CFX_Matrix* matrix,
                                int32_t& e) {
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, m_renderContents.AsStringC(), e);
+      ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
@@ -100,7 +100,7 @@
 
 CFX_WideString CBC_UPCA::Decode(uint8_t* buf,
                                 int32_t width,
-                                int32_t hight,
+                                int32_t height,
                                 int32_t& e) {
   CFX_WideString str;
   return str;
diff --git a/xfa/fxbarcode/cbc_upca.h b/xfa/fxbarcode/cbc_upca.h
index 3e0d24a..a2e0658 100644
--- a/xfa/fxbarcode/cbc_upca.h
+++ b/xfa/fxbarcode/cbc_upca.h
@@ -15,15 +15,22 @@
 class CBC_UPCA : public CBC_OneCode {
  public:
   CBC_UPCA();
-  virtual ~CBC_UPCA();
-  FX_BOOL Encode(const CFX_WideStringC& contents, FX_BOOL isDevice, int32_t& e);
+  ~CBC_UPCA() override;
+
+  // CBC_OneCode:
+  FX_BOOL Encode(const CFX_WideStringC& contents,
+                 FX_BOOL isDevice,
+                 int32_t& e) override;
   FX_BOOL RenderDevice(CFX_RenderDevice* device,
-                       const CFX_Matrix* matirx,
-                       int32_t& e);
-  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, 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);
-  BC_TYPE GetType() { return BC_UPCA; }
+                       const CFX_Matrix* matrix,
+                       int32_t& e) override;
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, 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;
+  BC_TYPE GetType() override { return BC_UPCA; }
 
  private:
   CFX_WideString Preprocess(const CFX_WideStringC& contents);
diff --git a/xfa/fxbarcode/oned/BC_OnedUPCAReader.h b/xfa/fxbarcode/oned/BC_OnedUPCAReader.h
index 1f2ba62..c073930 100644
--- a/xfa/fxbarcode/oned/BC_OnedUPCAReader.h
+++ b/xfa/fxbarcode/oned/BC_OnedUPCAReader.h
@@ -43,7 +43,6 @@
 
  private:
   CBC_OnedEAN13Reader* m_ean13Reader;
-
 };
 
 #endif  // XFA_FXBARCODE_ONED_BC_ONEDUPCAREADER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
index f915e58..1c85aa1 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
+++ b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
@@ -20,30 +20,63 @@
  * limitations under the License.
  */
 
-#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
+
+#include <limits>
+
+#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
 #include "xfa/fxbarcode/utils.h"
 
-const uint16_t CBC_QRCoderFormatInformation::FORMAT_INFO_MASK_QR = 0X5412;
-const uint16_t CBC_QRCoderFormatInformation::FORMAT_INFO_DECODE_LOOKUP[32][2] =
-    {
-        {0x5412, 0x00}, {0x5125, 0x01}, {0x5E7C, 0x02}, {0x5B4B, 0x03},
-        {0x45F9, 0x04}, {0x40CE, 0x05}, {0x4F97, 0x06}, {0x4AA0, 0x07},
-        {0x77C4, 0x08}, {0x72F3, 0x09}, {0x7DAA, 0x0A}, {0x789D, 0x0B},
-        {0x662F, 0x0C}, {0x6318, 0x0D}, {0x6C41, 0x0E}, {0x6976, 0x0F},
-        {0x1689, 0x10}, {0x13BE, 0x11}, {0x1CE7, 0x12}, {0x19D0, 0x13},
-        {0x0762, 0x14}, {0x0255, 0x15}, {0x0D0C, 0x16}, {0x083B, 0x17},
-        {0x355F, 0x18}, {0x3068, 0x19}, {0x3F31, 0x1A}, {0x3A06, 0x1B},
-        {0x24B4, 0x1C}, {0x2183, 0x1D}, {0x2EDA, 0x1E}, {0x2BED, 0x1F},
-};
-const uint8_t CBC_QRCoderFormatInformation::BITS_SET_IN_HALF_BYTE[] = {
-    0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
+namespace {
 
-CBC_QRCoderFormatInformation::CBC_QRCoderFormatInformation(int32_t formatInfo) {
-  m_errorCorrectLevl =
-      CBC_QRCoderErrorCorrectionLevel::ForBits((formatInfo >> 3) & 0x03);
-  m_dataMask = (uint8_t)(formatInfo & 0x07);
+const uint16_t FORMAT_INFO_MASK_QR = 0X5412;
+
+struct DecodeInfo {
+  uint16_t target;
+  uint16_t format;
+};
+const DecodeInfo FORMAT_INFO_DECODE_LOOKUP[32] = {
+    {0x5412, 0x00}, {0x5125, 0x01}, {0x5E7C, 0x02}, {0x5B4B, 0x03},
+    {0x45F9, 0x04}, {0x40CE, 0x05}, {0x4F97, 0x06}, {0x4AA0, 0x07},
+    {0x77C4, 0x08}, {0x72F3, 0x09}, {0x7DAA, 0x0A}, {0x789D, 0x0B},
+    {0x662F, 0x0C}, {0x6318, 0x0D}, {0x6C41, 0x0E}, {0x6976, 0x0F},
+    {0x1689, 0x10}, {0x13BE, 0x11}, {0x1CE7, 0x12}, {0x19D0, 0x13},
+    {0x0762, 0x14}, {0x0255, 0x15}, {0x0D0C, 0x16}, {0x083B, 0x17},
+    {0x355F, 0x18}, {0x3068, 0x19}, {0x3F31, 0x1A}, {0x3A06, 0x1B},
+    {0x24B4, 0x1C}, {0x2183, 0x1D}, {0x2EDA, 0x1E}, {0x2BED, 0x1F},
+};
+const uint8_t BITS_SET_IN_HALF_BYTE[] = {0, 1, 1, 2, 1, 2, 2, 3,
+                                         1, 2, 2, 3, 2, 3, 3, 4};
+
+CBC_QRCoderFormatInformation* DoDecodeFormatInformation(
+    int32_t maskedFormatInfo) {
+  int32_t bestDifference = std::numeric_limits<int32_t>::max();
+  int32_t bestFormatInfo = 0;
+  for (int32_t i = 0; i < 32; ++i) {
+    const DecodeInfo& decodeInfo = FORMAT_INFO_DECODE_LOOKUP[i];
+    if (decodeInfo.target == maskedFormatInfo)
+      return new CBC_QRCoderFormatInformation(decodeInfo.format);
+
+    int32_t bitsDifference = CBC_QRCoderFormatInformation::NumBitsDiffering(
+        maskedFormatInfo, decodeInfo.target);
+    if (bitsDifference < bestDifference) {
+      bestFormatInfo = decodeInfo.format;
+      bestDifference = bitsDifference;
+    }
+  }
+  if (bestDifference > 3)
+    return nullptr;
+  return new CBC_QRCoderFormatInformation(bestFormatInfo);
 }
+
+}  // namespace
+
+CBC_QRCoderFormatInformation::CBC_QRCoderFormatInformation(int32_t formatInfo)
+    : m_dataMask(static_cast<uint8_t>(formatInfo & 0x07)) {
+  m_errorCorrectLevel =
+      CBC_QRCoderErrorCorrectionLevel::ForBits((formatInfo >> 3) & 0x03);
+}
+
 CBC_QRCoderFormatInformation::~CBC_QRCoderFormatInformation() {}
 int32_t CBC_QRCoderFormatInformation::NumBitsDiffering(int32_t a, int32_t b) {
   a ^= b;
@@ -56,13 +89,17 @@
          BITS_SET_IN_HALF_BYTE[(a >> 24) & 0x0F] +
          BITS_SET_IN_HALF_BYTE[(a >> 28) & 0x0F];
 }
-uint8_t CBC_QRCoderFormatInformation::GetDataMask() {
+uint8_t CBC_QRCoderFormatInformation::GetDataMask() const {
   return m_dataMask;
 }
+
+// static
 CBC_QRCoderErrorCorrectionLevel*
 CBC_QRCoderFormatInformation::GetErrorCorrectionLevel() {
-  return m_errorCorrectLevl;
+  return m_errorCorrectLevel;
 }
+
+// static
 CBC_QRCoderFormatInformation*
 CBC_QRCoderFormatInformation::DecodeFormatInformation(
     int32_t maskedFormatInfo) {
@@ -72,25 +109,3 @@
     return formatInfo;
   return DoDecodeFormatInformation(maskedFormatInfo ^ FORMAT_INFO_MASK_QR);
 }
-CBC_QRCoderFormatInformation*
-CBC_QRCoderFormatInformation::DoDecodeFormatInformation(
-    int32_t maskedFormatInfo) {
-  int32_t bestDifference = (int32_t)FXSYS_nan();
-  int32_t bestFormatInfo = 0;
-  for (int32_t i = 0; i < 32; i++) {
-    uint16_t const* decodeInfo = &FORMAT_INFO_DECODE_LOOKUP[i][0];
-    uint16_t targetInfo = decodeInfo[0];
-    if (targetInfo == maskedFormatInfo) {
-      return new CBC_QRCoderFormatInformation(decodeInfo[1]);
-    }
-    int32_t bitsDifference = NumBitsDiffering(maskedFormatInfo, targetInfo);
-    if (bitsDifference < bestDifference) {
-      bestFormatInfo = decodeInfo[1];
-      bestDifference = bitsDifference;
-    }
-  }
-  if (bestDifference <= 3) {
-    return new CBC_QRCoderFormatInformation(bestFormatInfo);
-  }
-  return NULL;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
index a988d3b..b069795 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
+++ b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
@@ -7,26 +7,24 @@
 #ifndef XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
 #define XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
 
+#include <stdint.h>
+
 class CBC_QRCoderErrorCorrectionLevel;
 class CBC_QRCoderFormatInformation {
- private:
-  static const uint16_t FORMAT_INFO_MASK_QR;
-  static const uint16_t FORMAT_INFO_DECODE_LOOKUP[32][2];
-  static const uint8_t BITS_SET_IN_HALF_BYTE[16];
-  CBC_QRCoderErrorCorrectionLevel* m_errorCorrectLevl;
-  uint8_t m_dataMask;
-
  public:
-  CBC_QRCoderFormatInformation(int32_t formatInfo);
-  virtual ~CBC_QRCoderFormatInformation();
-  uint8_t GetDataMask();
+  explicit CBC_QRCoderFormatInformation(int32_t formatInfo);
+  ~CBC_QRCoderFormatInformation();
+
+  uint8_t GetDataMask() const;
   CBC_QRCoderErrorCorrectionLevel* GetErrorCorrectionLevel();
 
   static int32_t NumBitsDiffering(int32_t a, int32_t b);
   static CBC_QRCoderFormatInformation* DecodeFormatInformation(
       int32_t maskedFormatInfo);
-  static CBC_QRCoderFormatInformation* DoDecodeFormatInformation(
-      int32_t maskedFormatInfo);
+
+ private:
+  CBC_QRCoderErrorCorrectionLevel* m_errorCorrectLevel;
+  const uint8_t m_dataMask;
 };
 
 #endif  // XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_