Don't bother checking pointers before delete[] and FX_Free().

core/src/fxcodec/codec/fx_codec.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 "../../../include/fxcodec/fx_codec.h"
 #include "codec_int.h"
 CCodec_ModuleMgr::CCodec_ModuleMgr()
     : m_pBasicModule(new CCodec_BasicModule),
       m_pFaxModule(new CCodec_FaxModule),
       m_pJpegModule(new CCodec_JpegModule),
       m_pJpxModule(new CCodec_JpxModule),
       m_pJbig2Module(new CCodec_Jbig2Module),
       m_pIccModule(new CCodec_IccModule),
       m_pFlateModule(new CCodec_FlateModule) {}
 CCodec_ScanlineDecoder::CCodec_ScanlineDecoder() {
   m_NextLine = -1;
   m_pDataCache = NULL;
   m_pLastScanline = NULL;
 }
 CCodec_ScanlineDecoder::~CCodec_ScanlineDecoder() {
-  if (m_pDataCache) {
-    FX_Free(m_pDataCache);
-  }
+  FX_Free(m_pDataCache);
 }
 uint8_t* CCodec_ScanlineDecoder::GetScanline(int line) {
   if (m_pDataCache && line < m_pDataCache->m_nCachedLines) {
     return &m_pDataCache->m_Data + line * m_Pitch;
   }
   if (m_NextLine == line + 1) {
     return m_pLastScanline;
   }
   if (m_NextLine < 0 || m_NextLine > line) {
     if (!v_Rewind()) {
@@ skipping 211 matching lines @@
 };
 CCodec_RLScanlineDecoder::CCodec_RLScanlineDecoder()
     : m_pScanline(NULL),
       m_pSrcBuf(NULL),
       m_SrcSize(0),
       m_dwLineBytes(0),
       m_SrcOffset(0),
       m_bEOD(FALSE),
       m_Operator(0) {}
 CCodec_RLScanlineDecoder::~CCodec_RLScanlineDecoder() {
-  if (m_pScanline) {
-    FX_Free(m_pScanline);
-  }
+  FX_Free(m_pScanline);
 }
 FX_BOOL CCodec_RLScanlineDecoder::CheckDestSize() {
   FX_DWORD i = 0;
   FX_DWORD old_size = 0;
   FX_DWORD dest_size = 0;
   while (i < m_SrcSize) {
     if (m_pSrcBuf[i] < 128) {
       old_size = dest_size;
       dest_size += m_pSrcBuf[i] + 1;
       if (dest_size < old_size) {
@@ skipping 132 matching lines @@
     int nComps,
     int bpc) {
   CCodec_RLScanlineDecoder* pRLScanlineDecoder = new CCodec_RLScanlineDecoder;
   if (!pRLScanlineDecoder->Create(src_buf, src_size, width, height, nComps,
                                   bpc)) {
     delete pRLScanlineDecoder;
     return NULL;
   }
   return pRLScanlineDecoder;
 }