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

core/src/fpdfapi/fpdf_edit/fpdf_edit_create.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/fxcrt/fx_ext.h"
 #include "../../../include/fpdfapi/fpdf_serial.h"
 #include "editint.h"
 
@@ skipping 385 matching lines @@
     ::FlateEncode(pBuffer, size, 12, 1, 8, 7, m_pData, m_dwSize);
   } else {
     ::FlateEncode(pBuffer, size, m_pData, m_dwSize);
   }
   return TRUE;
 }
 CPDF_FlateEncoder::~CPDF_FlateEncoder() {
   if (m_bCloned && m_pDict) {
     m_pDict->Release();
   }
-  if (m_bNewData && m_pData) {
+  if (m_bNewData) {
     FX_Free(m_pData);
   }
 }
 class CPDF_Encryptor {
  public:
   CPDF_Encryptor();
   ~CPDF_Encryptor();
   FX_BOOL Initialize(CPDF_CryptoHandler* pHandler,
                      int objnum,
                      uint8_t* src_data,
@@ skipping 1630 matching lines @@
     m_pIDArray = CPDF_Array::Create();
     CPDF_Object* pID1 = pOldIDArray ? pOldIDArray->GetElement(0) : NULL;
     if (pID1) {
       m_pIDArray->Add(pID1->Clone());
     } else {
       pBuffer = FX_Alloc(FX_DWORD, 4);
       PDF_GenerateFileID((FX_DWORD)(uintptr_t) this, m_dwLastObjNum, pBuffer);
       CFX_ByteStringC bsBuffer((const uint8_t*)pBuffer, 4 * sizeof(FX_DWORD));
       m_pIDArray->Add(CPDF_String::Create(bsBuffer, TRUE), m_pDocument);
     }
-    if (pBuffer) {
-      FX_Free(pBuffer);
-    }
+    FX_Free(pBuffer);
   }
   if (!bDefault) {
     return;
   }
   if (pOldIDArray) {
     CPDF_Object* pID2 = pOldIDArray->GetElement(1);
     if ((m_dwFlags & FPDFCREATE_INCREMENTAL) && m_pEncryptDict && pID2) {
       m_pIDArray->Add(pID2->Clone());
       return;
     }
@@ skipping 69 matching lines @@
   m_bNewCrypto = FALSE;
   if (!m_bStandardSecurity) {
     return;
   }
   if (m_pEncryptDict) {
     m_pEncryptDict->Release();
     m_pEncryptDict = NULL;
   }
   m_bStandardSecurity = FALSE;
 }