Get rid of NULLs in core/

core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp

 // Copyright 2016 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
 
 #include "core/fpdfapi/fpdf_parser/include/ipdf_data_avail.h"
 
 #include "core/fpdfapi/fpdf_parser/cpdf_data_avail.h"
 #include "core/fpdfapi/fpdf_parser/fpdf_parser_utility.h"
@@ skipping 56 matching lines @@
   m_bLinearized = FALSE;
   m_bPagesLoad = FALSE;
   m_bPagesTreeLoad = FALSE;
   m_bMainXRefLoadedOK = FALSE;
   m_bAnnotsLoad = FALSE;
   m_bHaveAcroForm = FALSE;
   m_bAcroFormLoad = FALSE;
   m_bPageLoadedOK = FALSE;
   m_bNeedDownLoadResource = FALSE;
   m_bLinearizedFormParamLoad = FALSE;
-  m_pLinearized = NULL;
-  m_pRoot = NULL;
-  m_pTrailer = NULL;
-  m_pCurrentParser = NULL;
-  m_pAcroForm = NULL;
-  m_pPageDict = NULL;
-  m_pPageResource = NULL;
+  m_pLinearized = nullptr;
+  m_pRoot = nullptr;
+  m_pTrailer = nullptr;
+  m_pCurrentParser = nullptr;
+  m_pAcroForm = nullptr;
+  m_pPageDict = nullptr;
+  m_pPageResource = nullptr;
   m_docStatus = PDF_DATAAVAIL_HEADER;
   m_parser.m_bOwnFileRead = false;
   m_bTotalLoadPageTree = FALSE;
   m_bCurPageDictLoadOK = FALSE;
   m_bLinearedDataOK = FALSE;
   m_bSupportHintTable = bSupportHintTable;
 }
 CPDF_DataAvail::~CPDF_DataAvail() {
   m_pHintTables.reset();
   if (m_pLinearized)
@@ skipping 468 matching lines @@
   return TRUE;
 }
 
 FX_BOOL CPDF_DataAvail::GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages) {
   if (!pParser) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
   }
 
   CPDF_Dictionary* pDict = pPages->GetDict();
-  CPDF_Object* pKids = pDict ? pDict->GetObjectBy("Kids") : NULL;
+  CPDF_Object* pKids = pDict ? pDict->GetObjectBy("Kids") : nullptr;
   if (!pKids)
     return TRUE;
 
   switch (pKids->GetType()) {
     case CPDF_Object::REFERENCE:
       m_PageObjList.Add(pKids->AsReference()->GetRefObjNum());
       break;
     case CPDF_Object::ARRAY: {
       CPDF_Array* pKidsArray = pKids->AsArray();
       for (size_t i = 0; i < pKidsArray->GetCount(); ++i) {
@@ skipping 52 matching lines @@
     }
     return TRUE;
   }
 
   pHints->AddSegment(0, kReqSize);
   return FALSE;
 }
 
 FX_BOOL CPDF_DataAvail::CheckFirstPage(IPDF_DataAvail::DownloadHints* pHints) {
   CPDF_Dictionary* pDict = m_pLinearized->GetDict();
-  CPDF_Object* pEndOffSet = pDict ? pDict->GetObjectBy("E") : NULL;
+  CPDF_Object* pEndOffSet = pDict ? pDict->GetObjectBy("E") : nullptr;
   if (!pEndOffSet) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
   }
 
-  CPDF_Object* pXRefOffset = pDict ? pDict->GetObjectBy("T") : NULL;
+  CPDF_Object* pXRefOffset = pDict ? pDict->GetObjectBy("T") : nullptr;
   if (!pXRefOffset) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
   }
 
-  CPDF_Object* pFileLen = pDict ? pDict->GetObjectBy("L") : NULL;
+  CPDF_Object* pFileLen = pDict ? pDict->GetObjectBy("L") : nullptr;
   if (!pFileLen) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
   }
 
   FX_BOOL bNeedDownLoad = FALSE;
   if (pEndOffSet->IsNumber()) {
     uint32_t dwEnd = pEndOffSet->GetInteger();
     dwEnd += 512;
     if ((FX_FILESIZE)dwEnd > m_dwFileLen)
@@ skipping 1161 matching lines @@
   return FormAvailable;
 }
 
 CPDF_DataAvail::PageNode::PageNode() : m_type(PDF_PAGENODE_UNKNOWN) {}
 
 CPDF_DataAvail::PageNode::~PageNode() {
   for (int32_t i = 0; i < m_childNode.GetSize(); ++i)
     delete m_childNode[i];
   m_childNode.RemoveAll();
 }