Refcount all the IFX_ stream classes all the time.

xfa/fxfa/xfa_ffdoc.h

 // Copyright 2014 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
 
 #ifndef XFA_FXFA_XFA_FFDOC_H_
 #define XFA_FXFA_XFA_FFDOC_H_
 
 #include <map>
@@ skipping 22 matching lines @@
   IXFA_DocEnvironment* GetDocEnvironment() const { return m_pDocEnvironment; }
   uint32_t GetDocType();
   void SetDocType(uint32_t dwType);
 
   int32_t StartLoad();
   int32_t DoLoad(IFX_Pause* pPause = nullptr);
   void StopLoad();
 
   CXFA_FFDocView* CreateDocView(uint32_t dwView = 0);
 
-  bool OpenDoc(IFX_SeekableReadStream* pStream, bool bTakeOverFile);
+  bool OpenDoc(const CFX_RetainPtr<IFX_SeekableReadStream>& pStream);
   bool OpenDoc(CPDF_Document* pPDFDoc);
   bool CloseDoc();
 
   CXFA_Document* GetXFADoc() { return m_pDocumentParser->GetDocument(); }
   CXFA_FFApp* GetApp() { return m_pApp; }
   CXFA_FFDocView* GetDocView(CXFA_LayoutProcessor* pLayout);
   CXFA_FFDocView* GetDocView();
   CPDF_Document* GetPDFDoc();
   CFX_DIBitmap* GetPDFNamedImage(const CFX_WideStringC& wsName,
                                  int32_t& iImageXDpi,
                                  int32_t& iImageYDpi);
 
   bool SavePackage(XFA_HashCode code,
-                   IFX_SeekableWriteStream* pFile,
+                   const CFX_RetainPtr<IFX_SeekableWriteStream>& pFile,
                    CXFA_ChecksumContext* pCSContext);
-  bool ImportData(IFX_SeekableReadStream* pStream, bool bXDP = true);
+  bool ImportData(const CFX_RetainPtr<IFX_SeekableReadStream>& pStream,
+                  bool bXDP = true);
 
  protected:
   IXFA_DocEnvironment* const m_pDocEnvironment;
   std::unique_ptr<CXFA_DocumentParser> m_pDocumentParser;
-  IFX_SeekableReadStream* m_pStream;
+  CFX_RetainPtr<IFX_SeekableReadStream> m_pStream;
   CXFA_FFApp* m_pApp;
   std::unique_ptr<CXFA_FFNotify> m_pNotify;
   CPDF_Document* m_pPDFDoc;
   std::map<uint32_t, FX_IMAGEDIB_AND_DPI> m_HashToDibDpiMap;
   std::map<uint32_t, std::unique_ptr<CXFA_FFDocView>> m_TypeToDocViewMap;
   uint32_t m_dwDocType;
-  bool m_bOwnStream;
 };
 
 #endif  // XFA_FXFA_XFA_FFDOC_H_