Move CPDFSDK_MemoryAccess to fxcrt.

Rename it CFX_ReadOnlyMemoryStream and swap out one use of CFX_MemoryStream.

BUG=pdfium:263

Change-Id: I15012df156a6a4d7c36f6fd58f32c355eae5fa1a
Reviewed-on: https://pdfium-review.googlesource.com/39878
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 0 insertions, 32 deletions

diff --git a/fpdfsdk/cpdfsdk_memoryaccess.cpp b/fpdfsdk/cpdfsdk_memoryaccess.cpp
deleted file mode 100644
index 2a5b7aed00..0000000000
--- a/fpdfsdk/cpdfsdk_memoryaccess.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2018 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
-
-#include "fpdfsdk/cpdfsdk_memoryaccess.h"
-
-CPDFSDK_MemoryAccess::CPDFSDK_MemoryAccess(const uint8_t* pBuf,
-                                           FX_FILESIZE size)
-    : m_pBuf(pBuf), m_size(size) {}
-
-CPDFSDK_MemoryAccess::~CPDFSDK_MemoryAccess() = default;
-
-FX_FILESIZE CPDFSDK_MemoryAccess::GetSize() {
-  return m_size;
-}
-
-bool CPDFSDK_MemoryAccess::ReadBlock(void* buffer,
-                                     FX_FILESIZE offset,
-                                     size_t size) {
-  if (offset < 0)
-    return false;
-
-  FX_SAFE_FILESIZE newPos = pdfium::base::checked_cast<FX_FILESIZE>(size);
-  newPos += offset;
-  if (!newPos.IsValid() || newPos.ValueOrDie() > m_size)
-    return false;
-
-  memcpy(buffer, m_pBuf + offset, size);
-  return true;
-}