Rename IFX_ stream names

xfa/fxfa/xfa_checksum.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_CHECKSUM_H_
 #define XFA_FXFA_XFA_CHECKSUM_H_
 
 #include "xfa/fde/xml/cfx_saxreader.h"
@@ skipping 44 matching lines @@
   CXFA_SAXContext m_SAXContext;
 };
 
 class CXFA_ChecksumContext {
  public:
   CXFA_ChecksumContext();
   ~CXFA_ChecksumContext();
 
   void StartChecksum();
   void Update(const CFX_ByteStringC& bsText);
-  FX_BOOL UpdateChecksum(IFX_FileRead* pSrcFile,
+  FX_BOOL UpdateChecksum(IFX_SeekableReadStream* pSrcFile,
                          FX_FILESIZE offset = 0,
                          size_t size = 0);
   void FinishChecksum();
   CFX_ByteString GetChecksum() const;
 
  protected:
   CFX_SAXReader* m_pSAXReader;
   uint8_t* m_pByteContext;
   CFX_ByteString m_bsChecksum;
 };
 
 #endif  // XFA_FXFA_XFA_CHECKSUM_H_