Use smart pointers for class owned pointers in xfa/fxbarcode

xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h

Index: xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h b/xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h
index 5427436761d6aeb817289fc4f98cf4e31cd5c6c3..4259d6baddea027a4d97912f08fa87011d72904f 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h
+++ b/xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h
@@ -7,19 +7,22 @@
 #ifndef XFA_FXBARCODE_QRCODE_BC_QRCODERBLOCKPAIR_H_
 #define XFA_FXBARCODE_QRCODE_BC_QRCODERBLOCKPAIR_H_
 
+#include <memory>
+
 class CBC_CommonByteArray;
-class CBC_QRCoderBlockPair {
- private:
-  CBC_CommonByteArray* m_dataBytes;
-  CBC_CommonByteArray* m_errorCorrectionBytes;
 
+class CBC_QRCoderBlockPair {
  public:
-  CBC_QRCoderBlockPair(CBC_CommonByteArray* data,
-                       CBC_CommonByteArray* errorCorrection);
+  CBC_QRCoderBlockPair(std::unique_ptr<CBC_CommonByteArray> data,
+                       std::unique_ptr<CBC_CommonByteArray> errorCorrection);
   virtual ~CBC_QRCoderBlockPair();
 
-  CBC_CommonByteArray* GetDataBytes();
-  CBC_CommonByteArray* GetErrorCorrectionBytes();
+  const CBC_CommonByteArray* GetDataBytes() const;
+  const CBC_CommonByteArray* GetErrorCorrectionBytes() const;
+
+ private:
+  std::unique_ptr<CBC_CommonByteArray> m_dataBytes;
+  std::unique_ptr<CBC_CommonByteArray> m_errorCorrectionBytes;
 };
 
 #endif  // XFA_FXBARCODE_QRCODE_BC_QRCODERBLOCKPAIR_H_