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

xfa/src/fxbarcode/qrcode/BC_QRCodeReader.cpp

 // 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
 // Original code is licensed as follows:
 /*
  * Copyright 2007 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
+#include "xfa/src/fxbarcode/qrcode/BC_QRCodeReader.h"
+
+#include <memory>
+
 #include "xfa/src/fxbarcode/BC_Binarizer.h"
 #include "xfa/src/fxbarcode/BC_BinaryBitmap.h"
 #include "xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.h"
 #include "xfa/src/fxbarcode/BC_LuminanceSource.h"
 #include "xfa/src/fxbarcode/BC_Reader.h"
 #include "xfa/src/fxbarcode/BC_ResultPoint.h"
 #include "xfa/src/fxbarcode/common/BC_CommonDecoderResult.h"
 #include "xfa/src/fxbarcode/common/BC_GlobalHistogramBinarizer.h"
 #include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
-#include "xfa/src/fxbarcode/qrcode/BC_QRCodeReader.h"
-#include "xfa/src/fxbarcode/qrcode/BC_QRCodeReader.h"
-#include "xfa/src/fxbarcode/qrcode/BC_QRCodeReader.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderDecoder.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderMode.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRCoderVersion.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRDataMask.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRDetector.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRDetectorResult.h"
 
 CBC_QRCodeReader::CBC_QRCodeReader() : m_decoder(NULL) {}
 void CBC_QRCodeReader::Init() {
   m_decoder = new CBC_QRCoderDecoder;
   m_decoder->Init();
 }
 CBC_QRCodeReader::~CBC_QRCodeReader() {
   delete m_decoder;
 }
 CFX_ByteString CBC_QRCodeReader::Decode(CBC_BinaryBitmap* image,
                                         int32_t hints,
                                         int32_t& e) {
   CBC_CommonBitMatrix* matrix = image->GetMatrix(e);
   BC_EXCEPTION_CHECK_ReturnValue(e, "");
   CBC_QRDetector detector(matrix);
-  CBC_QRDetectorResult* qdr = detector.Detect(hints, e);
+  std::unique_ptr<CBC_QRDetectorResult> detectorResult(
+      detector.Detect(hints, e));
   BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  CBC_AutoPtr<CBC_QRDetectorResult> detectorResult(qdr);
-  CBC_CommonDecoderResult* qdr2 =
-      m_decoder->Decode(detectorResult->GetBits(), 0, e);
+  std::unique_ptr<CBC_CommonDecoderResult> decodeResult(
+      m_decoder->Decode(detectorResult->GetBits(), 0, e));
   BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  CBC_AutoPtr<CBC_CommonDecoderResult> decodeResult(qdr2);
   return (decodeResult->GetText());
 }
 CFX_ByteString CBC_QRCodeReader::Decode(const CFX_WideString& filename,
                                         int32_t hints,
                                         int32_t byteModeDecode,
                                         int32_t& e) {
   CBC_BufferedImageLuminanceSource source(filename);
   source.Init(e);
   BC_EXCEPTION_CHECK_ReturnValue(e, "");
   CBC_GlobalHistogramBinarizer binarizer(&source);
@@ skipping 25 matching lines @@
   }
   if (CBC_ReedSolomonGF256::DataMatrixField) {
     delete CBC_ReedSolomonGF256::DataMatrixField;
     CBC_ReedSolomonGF256::DataMatrixField = NULL;
   }
   CBC_QRCoderMode::Destroy();
   CBC_QRCoderErrorCorrectionLevel::Destroy();
   CBC_QRDataMask::Destroy();
   CBC_QRCoderVersion::Destroy();
 }