Rename IFX_ stream nameschromium/2900

It's been troubling for some time that an IFX_FileStream might
actually be an in-memory buffer with no backing file.

Review-Url: https://codereview.chromium.org/2443723002

4 files changed, 10 insertions, 9 deletions

diff --git a/xfa/fxfa/app/xfa_checksum.cpp b/xfa/fxfa/app/xfa_checksum.cpp
index 5e2b1feb0f..351ae73a03 100644
--- a/xfa/fxfa/app/xfa_checksum.cpp
+++ b/xfa/fxfa/app/xfa_checksum.cpp
@@ -225,7 +225,7 @@ void CXFA_ChecksumContext::StartChecksum() {
   m_pSAXReader = new CFX_SAXReader;
 }
 
-FX_BOOL CXFA_ChecksumContext::UpdateChecksum(IFX_FileRead* pSrcFile,
+FX_BOOL CXFA_ChecksumContext::UpdateChecksum(IFX_SeekableReadStream* pSrcFile,
                                              FX_FILESIZE offset,
                                              size_t size) {
   if (!m_pSAXReader || !pSrcFile)
diff --git a/xfa/fxfa/app/xfa_ffapp.cpp b/xfa/fxfa/app/xfa_ffapp.cpp
index f233eccf6f..d60d48fa75 100644
--- a/xfa/fxfa/app/xfa_ffapp.cpp
+++ b/xfa/fxfa/app/xfa_ffapp.cpp
@@ -90,7 +90,7 @@ CXFA_FFDocHandler* CXFA_FFApp::GetDocHandler() {
 }
 
 CXFA_FFDoc* CXFA_FFApp::CreateDoc(IXFA_DocEnvironment* pDocEnvironment,
-                                  IFX_FileRead* pStream,
+                                  IFX_SeekableReadStream* pStream,
                                   FX_BOOL bTakeOverFile) {
   std::unique_ptr<CXFA_FFDoc> pDoc(new CXFA_FFDoc(this, pDocEnvironment));
   FX_BOOL bSuccess = pDoc->OpenDoc(pStream, bTakeOverFile);
diff --git a/xfa/fxfa/app/xfa_ffdoc.cpp b/xfa/fxfa/app/xfa_ffdoc.cpp
index 25c78bd14b..494091b2f9 100644
--- a/xfa/fxfa/app/xfa_ffdoc.cpp
+++ b/xfa/fxfa/app/xfa_ffdoc.cpp
@@ -290,7 +290,8 @@ CXFA_FFDocView* CXFA_FFDoc::GetDocView() {
   return it != m_TypeToDocViewMap.end() ? it->second.get() : nullptr;
 }
 
-FX_BOOL CXFA_FFDoc::OpenDoc(IFX_FileRead* pStream, FX_BOOL bTakeOverFile) {
+FX_BOOL CXFA_FFDoc::OpenDoc(IFX_SeekableReadStream* pStream,
+                            FX_BOOL bTakeOverFile) {
   m_bOwnStream = bTakeOverFile;
   m_pStream = pStream;
   return TRUE;
@@ -324,7 +325,7 @@ FX_BOOL CXFA_FFDoc::OpenDoc(CPDF_Document* pPDFDoc) {
   if (xfaStreams.empty())
     return FALSE;
 
-  IFX_FileRead* pFileRead = new CXFA_FileRead(xfaStreams);
+  IFX_SeekableReadStream* pFileRead = new CXFA_FileRead(xfaStreams);
   m_pPDFDoc = pPDFDoc;
   if (m_pStream) {
     m_pStream->Release();
@@ -416,7 +417,7 @@ CFX_DIBitmap* CXFA_FFDoc::GetPDFNamedImage(const CFX_WideStringC& wsName,
   CPDF_StreamAcc streamAcc;
   streamAcc.LoadAllData(pStream);
 
-  IFX_FileRead* pImageFileRead =
+  IFX_SeekableReadStream* pImageFileRead =
       FX_CreateMemoryStream((uint8_t*)streamAcc.GetData(), streamAcc.GetSize());
 
   CFX_DIBitmap* pDibSource = XFA_LoadImageFromBuffer(
@@ -427,7 +428,7 @@ CFX_DIBitmap* CXFA_FFDoc::GetPDFNamedImage(const CFX_WideStringC& wsName,
 }
 
 bool CXFA_FFDoc::SavePackage(XFA_HashCode code,
-                             IFX_FileWrite* pFile,
+                             IFX_SeekableWriteStream* pFile,
                              CXFA_ChecksumContext* pCSContext) {
   CXFA_Document* doc = m_pDocumentParser->GetDocument();
 
@@ -445,7 +446,7 @@ bool CXFA_FFDoc::SavePackage(XFA_HashCode code,
       pFile, pNode, 0, bsChecksum.GetLength() ? bsChecksum.c_str() : nullptr);
 }
 
-FX_BOOL CXFA_FFDoc::ImportData(IFX_FileRead* pStream, FX_BOOL bXDP) {
+FX_BOOL CXFA_FFDoc::ImportData(IFX_SeekableReadStream* pStream, FX_BOOL bXDP) {
   std::unique_ptr<CXFA_DataImporter> importer(
       new CXFA_DataImporter(m_pDocumentParser->GetDocument()));
   return importer->ImportData(pStream);
diff --git a/xfa/fxfa/app/xfa_ffwidget.cpp b/xfa/fxfa/app/xfa_ffwidget.cpp
index 0e84ad6be5..c0c559aaf5 100644
--- a/xfa/fxfa/app/xfa_ffwidget.cpp
+++ b/xfa/fxfa/app/xfa_ffwidget.cpp
@@ -1056,7 +1056,7 @@ CFX_DIBitmap* XFA_LoadImageData(CXFA_FFDoc* pDoc,
   FXCODEC_IMAGE_TYPE type = XFA_GetImageType(wsContentType);
   CFX_ByteString bsContent;
   uint8_t* pImageBuffer = nullptr;
-  IFX_FileRead* pImageFileRead = nullptr;
+  IFX_SeekableReadStream* pImageFileRead = nullptr;
   if (wsImage.GetLength() > 0) {
     XFA_ATTRIBUTEENUM iEncoding =
         (XFA_ATTRIBUTEENUM)pImage->GetTransferEncoding();
@@ -1117,7 +1117,7 @@ static FXDIB_Format XFA_GetDIBFormat(FXCODEC_IMAGE_TYPE type,
   }
   return dibFormat;
 }
-CFX_DIBitmap* XFA_LoadImageFromBuffer(IFX_FileRead* pImageFileRead,
+CFX_DIBitmap* XFA_LoadImageFromBuffer(IFX_SeekableReadStream* pImageFileRead,
                                       FXCODEC_IMAGE_TYPE type,
                                       int32_t& iImageXDpi,
                                       int32_t& iImageYDpi) {