From 30029419ad4b9e5cd382767a8645677afbeff7fd Mon Sep 17 00:00:00 2001
From: Lei Zhang <thestig@chromium.org>
Date: Mon, 13 Aug 2018 19:56:29 +0000
Subject: Use CFX_ReadOnlyMemoryStream in more places.

More const pointers, less const_casts.

BUG=pdfium:263

Change-Id: I47fc6d8f2f837390e40ad22d8b67946065294eaa
Reviewed-on: https://pdfium-review.googlesource.com/39879
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
---
 xfa/fxfa/cxfa_ffdoc.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'xfa/fxfa/cxfa_ffdoc.cpp')

diff --git a/xfa/fxfa/cxfa_ffdoc.cpp b/xfa/fxfa/cxfa_ffdoc.cpp
index 330572ff9c..7852d30036 100644
--- a/xfa/fxfa/cxfa_ffdoc.cpp
+++ b/xfa/fxfa/cxfa_ffdoc.cpp
@@ -14,7 +14,7 @@
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/parser/fpdf_parser_decode.h"
 #include "core/fpdfdoc/cpdf_nametree.h"
-#include "core/fxcrt/cfx_memorystream.h"
+#include "core/fxcrt/cfx_readonlymemorystream.h"
 #include "core/fxcrt/cfx_seekablemultistream.h"
 #include "core/fxcrt/fx_extension.h"
 #include "core/fxcrt/fx_memory.h"
@@ -215,9 +215,8 @@ RetainPtr<CFX_DIBitmap> CXFA_FFDoc::GetPDFNamedImage(
   auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
   pAcc->LoadAllDataFiltered();
 
-  RetainPtr<IFX_SeekableStream> pImageFileRead =
-      pdfium::MakeRetain<CFX_MemoryStream>(
-          const_cast<uint8_t*>(pAcc->GetData()), pAcc->GetSize(), false);
+  auto pImageFileRead = pdfium::MakeRetain<CFX_ReadOnlyMemoryStream>(
+      pAcc->GetData(), pAcc->GetSize());
 
   RetainPtr<CFX_DIBitmap> pDibSource = XFA_LoadImageFromBuffer(
       pImageFileRead, FXCODEC_IMAGE_UNKNOWN, iImageXDpi, iImageYDpi);
-- 
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