Refcount all the IFX_ stream classes all the time.

core/fxcodec/codec/fx_codec_progress.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/fxcodec/codec/ccodec_progressivedecoder.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 1277 matching lines @@
       }
       return true;
     }
     default:
       m_status = FXCODEC_STATUS_ERR_FORMAT;
       return false;
   }
 }
 
 FXCODEC_STATUS CCodec_ProgressiveDecoder::LoadImageInfo(
-    IFX_SeekableReadStream* pFile,
+    const CFX_RetainPtr<IFX_SeekableReadStream>& pFile,
     FXCODEC_IMAGE_TYPE imageType,
     CFX_DIBAttribute* pAttribute,
     bool bSkipImageTypeCheck) {
   switch (m_status) {
     case FXCODEC_STATUS_FRAME_READY:
     case FXCODEC_STATUS_FRAME_TOBECONTINUE:
     case FXCODEC_STATUS_DECODE_READY:
     case FXCODEC_STATUS_DECODE_TOBECONTINUE:
       return FXCODEC_STATUS_ERROR;
     default:
@@ skipping 1056 matching lines @@
       return m_status;
     }
     default:
       return FXCODEC_STATUS_ERROR;
   }
 }
 
 CCodec_ProgressiveDecoder* CCodec_ModuleMgr::CreateProgressiveDecoder() {
   return new CCodec_ProgressiveDecoder(this);
 }