Subclass the stream implementations from CFGAS_Stream

Rename CFGAS_TextStream to CFGAS_Stream. CFGAS_Stream is converted
to a base class instead of accepting an IFGAS_StreamImp. Things
which inherted from IFGAS_StreamImp now inherit from CFGAS_Stream.

The stream type inputs are changed to IFX_SeekableStream so that
they can accept the same type (IFX_SeekableStream is an
IFX_SeekableWriteStream and an IFX_SeekableReadStream). This way
the storage can be shared in the base class.

Change-Id: I06645071e68e2a4d4120c0e336529f2c18c2b705
Reviewed-on: https://pdfium-review.googlesource.com/4152
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Nicolás Peña <npm@chromium.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/xfa/fxfa/parser/cxfa_dataexporter.h b/xfa/fxfa/parser/cxfa_dataexporter.h
index ac441ca21d..8f405b188d 100644
--- a/xfa/fxfa/parser/cxfa_dataexporter.h
+++ b/xfa/fxfa/parser/cxfa_dataexporter.h
@@ -12,15 +12,15 @@
 
 class CXFA_Document;
 class CXFA_Node;
-class IFX_SeekableWriteStream;
+class IFX_SeekableStream;
 class IFGAS_Stream;
 
 class CXFA_DataExporter {
  public:
   explicit CXFA_DataExporter(CXFA_Document* pDocument);
 
-  bool Export(const CFX_RetainPtr<IFX_SeekableWriteStream>& pWrite);
-  bool Export(const CFX_RetainPtr<IFX_SeekableWriteStream>& pWrite,
+  bool Export(const CFX_RetainPtr<IFX_SeekableStream>& pWrite);
+  bool Export(const CFX_RetainPtr<IFX_SeekableStream>& pWrite,
               CXFA_Node* pNode,
               uint32_t dwFlag,
               const char* pChecksum);