Use smart pointers for class owned pointers in xfa/fxbarcode

xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.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 2008 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/BC_CommonByteArray.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderBlockPair.h"
 
+#include <utility>
+
+#include "xfa/fxbarcode/common/BC_CommonByteArray.h"
+
 CBC_QRCoderBlockPair::CBC_QRCoderBlockPair(
-    CBC_CommonByteArray* data,
-    CBC_CommonByteArray* errorCorrection) {
-  m_dataBytes = data;
-  m_errorCorrectionBytes = errorCorrection;
+    std::unique_ptr<CBC_CommonByteArray> data,
+    std::unique_ptr<CBC_CommonByteArray> errorCorrection)
+    : m_dataBytes(std::move(data)),
+      m_errorCorrectionBytes(std::move(errorCorrection)) {}
+
+CBC_QRCoderBlockPair::~CBC_QRCoderBlockPair() {}
+
+const CBC_CommonByteArray* CBC_QRCoderBlockPair::GetDataBytes() const {
+  return m_dataBytes.get();
 }
-CBC_QRCoderBlockPair::~CBC_QRCoderBlockPair() {
-  delete m_dataBytes;
-  delete m_errorCorrectionBytes;
+
+const CBC_CommonByteArray* CBC_QRCoderBlockPair::GetErrorCorrectionBytes()
+    const {
+  return m_errorCorrectionBytes.get();
 }
-CBC_CommonByteArray* CBC_QRCoderBlockPair::GetDataBytes() {
-  return m_dataBytes;
-}
-CBC_CommonByteArray* CBC_QRCoderBlockPair::GetErrorCorrectionBytes() {
-  return m_errorCorrectionBytes;
-}