Merge to XFA: CPDF_Parser shouldnt be in the business of opening files

fpdfsdk/src/fpdfview.cpp

Index: fpdfsdk/src/fpdfview.cpp
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp
index 159440de5953a1786269f0a4c6244d46faece0af..38a51f9ce2ac73201aefc2b54b18b9c70cab2924 100644
--- a/fpdfsdk/src/fpdfview.cpp
+++ b/fpdfsdk/src/fpdfview.cpp
@@ -237,12 +237,20 @@ DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy,
   return FSDK_SetSandBoxPolicy(policy, enable);
 }
 
+
 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path,
                                                   FPDF_BYTESTRING password) {
-  CPDF_Parser* pParser = FX_NEW CPDF_Parser;
+  // NOTE: the creation of the file needs to be by the embedder on the
+  // other side of this API.
+  IFX_FileRead* pFileAccess = FX_CreateFileRead((const FX_CHAR*)file_path);
+  if (!pFileAccess) {
+    return nullptr;
+  }
+
+  CPDF_Parser* pParser = new CPDF_Parser;
   pParser->SetPassword(password);
 
-  FX_DWORD err_code = pParser->StartParse((const FX_CHAR*)file_path);
+  FX_DWORD err_code = pParser->StartParse(pFileAccess);
   if (err_code) {
     delete pParser;
     ProcessParseError(err_code);