Refcount all the IFX_ stream classes all the time.

core/fpdfapi/parser/cpdf_syntax_parser.h

Index: core/fpdfapi/parser/cpdf_syntax_parser.h
diff --git a/core/fpdfapi/parser/cpdf_syntax_parser.h b/core/fpdfapi/parser/cpdf_syntax_parser.h
index 1e8f736c176f412c9a7da57baf512353afa910c4..8dd9103f1b74e6d08ea5566f37dc441643340082 100644
--- a/core/fpdfapi/parser/cpdf_syntax_parser.h
+++ b/core/fpdfapi/parser/cpdf_syntax_parser.h
@@ -26,7 +26,9 @@ class CPDF_SyntaxParser {
   explicit CPDF_SyntaxParser(const CFX_WeakPtr<CFX_ByteStringPool>& pPool);
   ~CPDF_SyntaxParser();
 
-  void InitParser(IFX_SeekableReadStream* pFileAccess, uint32_t HeaderOffset);
+  void InitParser(const CFX_RetainPtr<IFX_SeekableReadStream>& pFileAccess,
+                  uint32_t HeaderOffset);
+
   FX_FILESIZE SavePos() const { return m_Pos; }
   void RestorePos(FX_FILESIZE pos) { m_Pos = pos; }
 
@@ -87,7 +89,7 @@ class CPDF_SyntaxParser {
 
   FX_FILESIZE m_Pos;
   uint32_t m_MetadataObjnum;
-  IFX_SeekableReadStream* m_pFileAccess;
+  CFX_RetainPtr<IFX_SeekableReadStream> m_pFileAccess;
   FX_FILESIZE m_HeaderOffset;
   FX_FILESIZE m_FileLen;
   uint8_t* m_pFileBuf;