Avoid the ptr.reset(new XXX()) anti-pattern

xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.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/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
+
+#include "third_party/base/ptr_util.h"
 #include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h"
 
 CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::QRCodeField = nullptr;
 CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::DataMatrixField = nullptr;
 
 void CBC_ReedSolomonGF256::Initialize() {
   QRCodeField = new CBC_ReedSolomonGF256(0x011D);
   QRCodeField->Init();
   DataMatrixField = new CBC_ReedSolomonGF256(0x012D);
   DataMatrixField->Init();
@@ skipping 15 matching lines @@
       x ^= primitive;
     }
   }
   for (int32_t i = 0; i < 255; i++) {
     m_logTable[m_expTable[i]] = i;
   }
   m_logTable[0] = 0;
 }
 
 void CBC_ReedSolomonGF256::Init() {
-  m_zero.reset(new CBC_ReedSolomonGF256Poly(this, 0));
-  m_one.reset(new CBC_ReedSolomonGF256Poly(this, 1));
+  m_zero = pdfium::MakeUnique<CBC_ReedSolomonGF256Poly>(this, 0);
+  m_one = pdfium::MakeUnique<CBC_ReedSolomonGF256Poly>(this, 1);
 }
 
 CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256() {}
 
 CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero() const {
   return m_zero.get();
 }
 
 CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne() const {
   return m_one.get();
@@ skipping 50 matching lines @@
     return 0;
   }
   if (a == 1) {
     return b;
   }
   if (b == 1) {
     return a;
   }
   return m_expTable[(m_logTable[a] + m_logTable[b]) % 255];
 }