Get rid of NULLs in xfa/fxbarcode/

xfa/fxbarcode/common/BC_CommonDecoderResult.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");
@@ skipping 22 matching lines @@
                                    CBC_QRCoderErrorCorrectionLevel* ecLevel,
                                    int32_t& e) {
   if (text.IsEmpty()) {
     e = BCExceptionIllegalArgument;
     return;
   }
   m_rawBytes.Copy(rawBytes);
   m_text = text;
   m_byteSegments.Copy(byteSegments);
   m_ecLevel = ecLevel;
-  m_other = NULL;
+  m_other = nullptr;
 }
 void CBC_CommonDecoderResult::Init(const CFX_ByteArray& rawBytes,
                                    const CFX_ByteString& text,
                                    const CFX_ByteString& ecLevel,
                                    int32_t& e) {
   if (text.IsEmpty()) {
     e = BCExceptionIllegalArgument;
     return;
   }
   m_rawBytes.Copy(rawBytes);
   m_text = text;
   m_pdf417ecLevel = ecLevel;
-  m_other = NULL;
+  m_other = nullptr;
 }
 void CBC_CommonDecoderResult::setOther(CBC_PDF417ResultMetadata* other) {
   m_other = other;
 }
 CBC_CommonDecoderResult::~CBC_CommonDecoderResult() {
   delete m_other;
 }
 const CFX_ByteArray& CBC_CommonDecoderResult::GetRawBytes() {
   return m_rawBytes;
 }
 const CFX_Int32Array& CBC_CommonDecoderResult::GetByteSegments() {
   return m_byteSegments;
 }
 const CFX_ByteString& CBC_CommonDecoderResult::GetText() {
   return m_text;
 }
 CBC_QRCoderErrorCorrectionLevel* CBC_CommonDecoderResult::GetECLevel() {
   return m_ecLevel;
 }