Convert CFX_XMLParser to take a IFX_SeekableStream

This CL changes the CFX_XMLParser to accept an IFX_SeekableStream intead of a
CFX_SeekableStreamProxy.

Change-Id: I3534288a8a00095acd78a60bf6b925c6a0357892
Reviewed-on: https://pdfium-review.googlesource.com/30856
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

3 files changed, 10 insertions, 19 deletions

diff --git a/xfa/fxfa/parser/cxfa_document_parser.cpp b/xfa/fxfa/parser/cxfa_document_parser.cpp
index f52d52ff3c..62828d71a7 100644
--- a/xfa/fxfa/parser/cxfa_document_parser.cpp
+++ b/xfa/fxfa/parser/cxfa_document_parser.cpp
@@ -9,7 +9,7 @@
 #include <utility>
 #include <vector>
 
-#include "core/fxcrt/cfx_seekablestreamproxy.h"
+#include "core/fxcrt/cfx_memorystream.h"
 #include "core/fxcrt/cfx_widetextbuf.h"
 #include "core/fxcrt/fx_codepage.h"
 #include "core/fxcrt/fx_extension.h"
@@ -329,14 +329,7 @@ CXFA_DocumentParser::~CXFA_DocumentParser() {}
 
 bool CXFA_DocumentParser::Parse(const RetainPtr<IFX_SeekableStream>& pStream,
                                 XFA_PacketType ePacketID) {
-  auto pStreamProxy = pdfium::MakeRetain<CFX_SeekableStreamProxy>(pStream);
-  uint16_t wCodePage = pStreamProxy->GetCodePage();
-  if (wCodePage != FX_CODEPAGE_UTF16LE && wCodePage != FX_CODEPAGE_UTF16BE &&
-      wCodePage != FX_CODEPAGE_UTF8) {
-    pStreamProxy->SetCodePage(FX_CODEPAGE_UTF8);
-  }
-
-  m_pNodeTree = LoadXML(pStreamProxy);
+  m_pNodeTree = LoadXML(pStream);
   if (!m_pNodeTree)
     return false;
 
@@ -345,14 +338,14 @@ bool CXFA_DocumentParser::Parse(const RetainPtr<IFX_SeekableStream>& pStream,
 }
 
 CFX_XMLNode* CXFA_DocumentParser::ParseXMLData(const ByteString& wsXML) {
-  auto pStream = pdfium::MakeRetain<CFX_SeekableStreamProxy>(
-      const_cast<uint8_t*>(wsXML.raw_str()), wsXML.GetLength());
+  auto pStream = pdfium::MakeRetain<CFX_MemoryStream>(
+      const_cast<uint8_t*>(wsXML.raw_str()), wsXML.GetLength(), false);
   m_pNodeTree = LoadXML(pStream);
   return m_pNodeTree ? GetDocumentNode(m_pNodeTree.get()) : nullptr;
 }
 
 std::unique_ptr<CFX_XMLNode> CXFA_DocumentParser::LoadXML(
-    const RetainPtr<CFX_SeekableStreamProxy>& pStream) {
+    const RetainPtr<IFX_SeekableStream>& pStream) {
   ASSERT(pStream);
 
   auto root = pdfium::MakeUnique<CFX_XMLNode>();
diff --git a/xfa/fxfa/parser/cxfa_document_parser.h b/xfa/fxfa/parser/cxfa_document_parser.h
index acd27e6238..d76d5953ac 100644
--- a/xfa/fxfa/parser/cxfa_document_parser.h
+++ b/xfa/fxfa/parser/cxfa_document_parser.h
@@ -18,7 +18,6 @@ class CXFA_Node;
 class CFX_XMLDoc;
 class CFX_XMLInstruction;
 class IFX_SeekableStream;
-class CFX_SeekableStreamProxy;
 
 class CXFA_DocumentParser {
  public:
@@ -36,7 +35,7 @@ class CXFA_DocumentParser {
 
  private:
   std::unique_ptr<CFX_XMLNode> LoadXML(
-      const RetainPtr<CFX_SeekableStreamProxy>& pStream);
+      const RetainPtr<IFX_SeekableStream>& pStream);
 
   CXFA_Node* ParseAsXDPPacket(CFX_XMLNode* pXMLDocumentNode,
                               XFA_PacketType ePacketID);
diff --git a/xfa/fxfa/parser/cxfa_xmllocale.cpp b/xfa/fxfa/parser/cxfa_xmllocale.cpp
index 4354ed98de..ffb4cd9dde 100644
--- a/xfa/fxfa/parser/cxfa_xmllocale.cpp
+++ b/xfa/fxfa/parser/cxfa_xmllocale.cpp
@@ -8,6 +8,7 @@
 
 #include <utility>
 
+#include "core/fxcrt/cfx_memorystream.h"
 #include "core/fxcrt/fx_codepage.h"
 #include "core/fxcrt/xml/cfx_xmlelement.h"
 #include "core/fxcrt/xml/cfx_xmlparser.h"
@@ -30,11 +31,9 @@ constexpr wchar_t kCurrencySymbol[] = L"currencySymbol";
 std::unique_ptr<CXFA_XMLLocale> CXFA_XMLLocale::Create(
     pdfium::span<uint8_t> data) {
   auto root = pdfium::MakeUnique<CFX_XMLElement>(L"root");
-  auto proxy =
-      pdfium::MakeRetain<CFX_SeekableStreamProxy>(data.data(), data.size());
-  proxy->SetCodePage(FX_CODEPAGE_UTF8);
-
-  CFX_XMLParser parser(root.get(), proxy);
+  auto stream =
+      pdfium::MakeRetain<CFX_MemoryStream>(data.data(), data.size(), false);
+  CFX_XMLParser parser(root.get(), stream);
   if (!parser.Parse())
     return nullptr;