Get rid of NULLs in core/

core/fpdfapi/fpdf_font/fpdf_font_cid.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
 
 #include "core/fpdfapi/fpdf_font/font_int.h"
 
 #include "core/fpdfapi/fpdf_cmaps/cmap_int.h"
 #include "core/fpdfapi/fpdf_font/ttgsubtable.h"
@@ skipping 318 matching lines @@
                                                          FX_BOOL bPromptCJK) {
   if (!m_CID2UnicodeMaps[charset])
     m_CID2UnicodeMaps[charset] = LoadCID2UnicodeMap(charset, bPromptCJK);
   return m_CID2UnicodeMaps[charset];
 }
 CPDF_CID2UnicodeMap* CPDF_CMapManager::LoadCID2UnicodeMap(CIDSet charset,
                                                           FX_BOOL bPromptCJK) {
   CPDF_CID2UnicodeMap* pMap = new CPDF_CID2UnicodeMap();
   if (!pMap->Initialize()) {
     delete pMap;
-    return NULL;
+    return nullptr;
   }
   pMap->Load(this, charset, bPromptCJK);
   return pMap;
 }
 CPDF_CMapParser::CPDF_CMapParser() {
-  m_pCMap = NULL;
+  m_pCMap = nullptr;
   m_Status = 0;
   m_CodeSeq = 0;
 }
 FX_BOOL CPDF_CMapParser::Initialize(CPDF_CMap* pCMap) {
   m_pCMap = pCMap;
   m_Status = 0;
   m_CodeSeq = 0;
   m_AddMaps.EstimateSize(0, 10240);
   return TRUE;
 }
@@ skipping 143 matching lines @@
   }
   return true;
 }
 
 CPDF_CMap::CPDF_CMap() {
   m_Charset = CIDSET_UNKNOWN;
   m_Coding = CIDCODING_UNKNOWN;
   m_CodingScheme = TwoBytes;
   m_bVertical = 0;
   m_bLoaded = FALSE;
-  m_pMapping = NULL;
-  m_pLeadingBytes = NULL;
-  m_pAddMapping = NULL;
-  m_pEmbedMap = NULL;
-  m_pUseMap = NULL;
+  m_pMapping = nullptr;
+  m_pLeadingBytes = nullptr;
+  m_pAddMapping = nullptr;
+  m_pEmbedMap = nullptr;
+  m_pUseMap = nullptr;
   m_nCodeRanges = 0;
 }
 CPDF_CMap::~CPDF_CMap() {
   FX_Free(m_pMapping);
   FX_Free(m_pAddMapping);
   FX_Free(m_pLeadingBytes);
   delete m_pUseMap;
 }
 void CPDF_CMap::Release() {
   if (m_PredefinedCMap.IsEmpty()) {
@@ skipping 264 matching lines @@
   FPDFAPI_LoadCID2UnicodeMap(charset, m_pEmbeddedMap, m_EmbeddedCount);
 }
 
 CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering) {
   for (size_t charset = 1; charset < FX_ArraySize(g_CharsetNames); ++charset) {
     if (ordering == g_CharsetNames[charset])
       return CIDSetFromSizeT(charset);
   }
   return CIDSET_UNKNOWN;
 }