Refcount all the IFX_ stream classes all the time.

xfa/fxfa/parser/cxfa_document_parser.cpp

Index: xfa/fxfa/parser/cxfa_document_parser.cpp
diff --git a/xfa/fxfa/parser/cxfa_document_parser.cpp b/xfa/fxfa/parser/cxfa_document_parser.cpp
index fe3cb933aa9f4330ef026f47e25bd032024e590d..1bf327d667e1028bb3b21acd5d86ef1085be43a1 100644
--- a/xfa/fxfa/parser/cxfa_document_parser.cpp
+++ b/xfa/fxfa/parser/cxfa_document_parser.cpp
@@ -15,8 +15,9 @@ CXFA_DocumentParser::CXFA_DocumentParser(CXFA_FFNotify* pNotify)
 CXFA_DocumentParser::~CXFA_DocumentParser() {
 }
 
-int32_t CXFA_DocumentParser::StartParse(IFX_SeekableReadStream* pStream,
-                                        XFA_XDPPACKET ePacketID) {
+int32_t CXFA_DocumentParser::StartParse(
+    const CFX_RetainPtr<IFX_SeekableReadStream>& pStream,
+    XFA_XDPPACKET ePacketID) {
   m_pDocument.reset();
   m_nodeParser.CloseParser();