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

core/src/fxcodec/codec/codec_int.h

 // 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
 
 #ifndef CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_
 #define CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_
 
 #include <limits.h>
@@ skipping 43 matching lines @@
 
   int GetHeight() { return m_OutputHeight; }
 
   int CountComps() { return m_nComps; }
 
   int GetBPC() { return m_bpc; }
 
   FX_BOOL IsColorTransformed() { return m_bColorTransformed; }
 
   void ClearImageData() {
-    if (m_pDataCache) {
       FX_Free(m_pDataCache);
-    }
     m_pDataCache = NULL;
   }
 
  protected:
   int m_OrigWidth;
 
   int m_OrigHeight;
 
   int m_DownScale;
 
@@ skipping 286 matching lines @@
 OPJ_SIZE_T opj_read_from_memory(void* p_buffer,
                                 OPJ_SIZE_T nb_bytes,
                                 void* p_user_data);
 OPJ_SIZE_T opj_write_from_memory(void* p_buffer,
                                  OPJ_SIZE_T nb_bytes,
                                  void* p_user_data);
 OPJ_OFF_T opj_skip_from_memory(OPJ_OFF_T nb_bytes, void* p_user_data);
 OPJ_BOOL opj_seek_from_memory(OPJ_OFF_T nb_bytes, void* p_user_data);
 
 #endif  // CORE_SRC_FXCODEC_CODEC_CODEC_INT_H_