Refcount IFGAS_ streams all the time, too

xfa/fxfa/parser/cxfa_widetextread.cpp

Index: xfa/fxfa/parser/cxfa_widetextread.cpp
diff --git a/xfa/fxfa/parser/cxfa_widetextread.cpp b/xfa/fxfa/parser/cxfa_widetextread.cpp
index cf03a09e7c598d61b40983ac48eae1d16e8905e8..54442df7c032e61d6f893a77dc63b626d255e935 100644
--- a/xfa/fxfa/parser/cxfa_widetextread.cpp
+++ b/xfa/fxfa/parser/cxfa_widetextread.cpp
@@ -12,17 +12,7 @@
 #include "xfa/fgas/crt/fgas_codepage.h"
 
 CXFA_WideTextRead::CXFA_WideTextRead(const CFX_WideString& wsBuffer)
-    : m_wsBuffer(wsBuffer), m_iPosition(0), m_iRefCount(1) {}
-
-void CXFA_WideTextRead::Release() {
-  if (--m_iRefCount < 1)
-    delete this;
-}
-
-IFGAS_Stream* CXFA_WideTextRead::Retain() {
-  m_iRefCount++;
-  return this;
-}
+    : m_wsBuffer(wsBuffer), m_iPosition(0) {}
 
 uint32_t CXFA_WideTextRead::GetAccessModes() const {
   return FX_STREAMACCESS_Read | FX_STREAMACCESS_Text;
@@ -98,9 +88,10 @@ uint16_t CXFA_WideTextRead::SetCodePage(uint16_t wCodePage) {
   return GetCodePage();
 }
 
-IFGAS_Stream* CXFA_WideTextRead::CreateSharedStream(uint32_t dwAccess,
-                                                    int32_t iOffset,
-                                                    int32_t iLength) {
+CFX_RetainPtr<IFGAS_Stream> CXFA_WideTextRead::CreateSharedStream(
+    uint32_t dwAccess,
+    int32_t iOffset,
+    int32_t iLength) {
   return nullptr;
 }