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

xfa/src/fxbarcode/qrcode/BC_QRFinderPatternFinder.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_QRFinderPatternFinder.h"
+
+#include <memory>
+
 #include "core/include/fxcrt/fx_basic.h"
 #include "xfa/src/fxbarcode/BC_ResultPoint.h"
 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
 #include "xfa/src/fxbarcode/qrcode/BC_FinderPatternInfo.h"
 #include "xfa/src/fxbarcode/qrcode/BC_QRFinderPattern.h"
-#include "xfa/src/fxbarcode/qrcode/BC_QRFinderPatternFinder.h"
 #include "xfa/src/fxbarcode/utils.h"
 
 const int32_t CBC_QRFinderPatternFinder::CENTER_QUORUM = 2;
 const int32_t CBC_QRFinderPatternFinder::MIN_SKIP = 3;
 const int32_t CBC_QRFinderPatternFinder::MAX_MODULES = 57;
 const int32_t CBC_QRFinderPatternFinder::INTEGER_MATH_SHIFT = 8;
 
 CBC_QRFinderPatternFinder::CBC_QRFinderPatternFinder(
     CBC_CommonBitMatrix* image) {
   m_image = image;
@@ skipping 112 matching lines @@
     if (FoundPatternCross(stateCount)) {
       FX_BOOL confirmed = HandlePossibleCenter(stateCount, i, maxJ);
       if (confirmed) {
         iSkip = stateCount[0];
         if (m_hasSkipped) {
           done = HaveMultiplyConfirmedCenters();
         }
       }
     }
   }
-  CFX_PtrArray* ptr = SelectBestpatterns(e);
+  std::unique_ptr<CFX_PtrArray> patternInfo(SelectBestpatterns(e));
   BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-  CBC_AutoPtr<CFX_PtrArray> patternInfo(ptr);
   OrderBestPatterns(patternInfo.get());
   return new CBC_QRFinderPatternInfo(patternInfo.get());
 }
 void CBC_QRFinderPatternFinder::OrderBestPatterns(CFX_PtrArray* patterns) {
   FX_FLOAT abDistance = Distance((CBC_ResultPoint*)(*patterns)[0],
                                  (CBC_ResultPoint*)(*patterns)[1]);
   FX_FLOAT bcDistance = Distance((CBC_ResultPoint*)(*patterns)[1],
                                  (CBC_ResultPoint*)(*patterns)[2]);
   FX_FLOAT acDistance = Distance((CBC_ResultPoint*)(*patterns)[0],
                                  (CBC_ResultPoint*)(*patterns)[2]);
@@ skipping 292 matching lines @@
   if (m_possibleCenters.GetSize() > 3) {
     BC_FX_PtrArray_Sort(m_possibleCenters, centerComparator);
   }
   CFX_PtrArray* vec = new CFX_PtrArray();
   vec->SetSize(3);
   (*vec)[0] = ((CBC_QRFinderPattern*)m_possibleCenters[0])->Clone();
   (*vec)[1] = ((CBC_QRFinderPattern*)m_possibleCenters[1])->Clone();
   (*vec)[2] = ((CBC_QRFinderPattern*)m_possibleCenters[2])->Clone();
   return vec;
 }