Refcount all the IFX_ stream classes all the time.

core/fpdfapi/page/cpdf_image.cpp

Index: core/fpdfapi/page/cpdf_image.cpp
diff --git a/core/fpdfapi/page/cpdf_image.cpp b/core/fpdfapi/page/cpdf_image.cpp
index 5d1d51de896e6a61933d2dfea34012780a22072c..a17222e3430d39ccf58afc1809d2d9ae436a0909 100644
--- a/core/fpdfapi/page/cpdf_image.cpp
+++ b/core/fpdfapi/page/cpdf_image.cpp
@@ -116,7 +116,8 @@ std::unique_ptr<CPDF_Dictionary> CPDF_Image::InitJPEG(uint8_t* pData,
   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;