Refcount all the IFX_ stream classes all the time.

core/fpdfapi/page/cpdf_image.cpp

 // Copyright 2016 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/page/cpdf_image.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 98 matching lines @@
     pParms->SetNewFor<CPDF_Number>("ColorTransform", 0);
   }
   m_bIsMask = false;
   m_Width = width;
   m_Height = height;
   if (!m_pStream)
     m_pStream = pdfium::MakeUnique<CPDF_Stream>();
   return pDict;
 }
 
-void CPDF_Image::SetJpegImage(IFX_SeekableReadStream* pFile) {
+void CPDF_Image::SetJpegImage(
+    const CFX_RetainPtr<IFX_SeekableReadStream>& pFile) {
   uint32_t size = pdfium::base::checked_cast<uint32_t>(pFile->GetSize());
   if (!size)
     return;
 
   uint32_t dwEstimateSize = std::min(size, 8192U);
   std::vector<uint8_t> data(dwEstimateSize);
   if (!pFile->ReadBlock(data.data(), 0, dwEstimateSize))
     return;
 
   std::unique_ptr<CPDF_Dictionary> pDict =
@@ skipping 231 matching lines @@
   }
   if (!ret) {
     delete m_pDIBSource;
     m_pDIBSource = nullptr;
     return false;
   }
   m_pMask = pSource->DetachMask();
   m_MatteColor = pSource->GetMatteColor();
   return false;
 }