Get rid of CBC_AutoPtr and use std::unique_ptr instead.

xfa/src/fxbarcode/qrcode/BC_QRCodeReader.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_SRC_FXBARCODE_QRCODE_BC_QRCODEREADER_H_
 #define XFA_SRC_FXBARCODE_QRCODE_BC_QRCODEREADER_H_
 
+#include <stdint.h>
+
+#include "core/include/fxcrt/fx_string.h"
+#include "xfa/src/fxbarcode/BC_Reader.h"
+
 class CBC_QRDetector;
 class CBC_BinaryBitmap;
 class CBC_QRCoderDecoder;
 class CBC_ResultPoint;
 class CBC_ReedSolomonGF256;
 class CBC_QRCoderVersion;
 class CBC_QRDetector;
 class CBC_QRDetectorResult;
 class CBC_QRCoderErrorCorrectionLevel;
 class CBC_QRCoderMode;
 class CBC_QRDataMask;
-class CBC_QRCodeReader;
+class CFX_DIBitmap;
+
 class CBC_QRCodeReader : public CBC_Reader {
  private:
   CBC_QRCoderDecoder* m_decoder;
 
  public:
   CBC_QRCodeReader();
   virtual ~CBC_QRCodeReader();
   CFX_ByteString Decode(CFX_DIBitmap* pBitmap,
                         int32_t hints,
                         int32_t byteModeDecode,
                         int32_t& e);
   CFX_ByteString Decode(const CFX_WideString& filename,
                         int32_t hints,
                         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);
   virtual void Init();
 };
 
 #endif  // XFA_SRC_FXBARCODE_QRCODE_BC_QRCODEREADER_H_