core/ difference with XFA (for information only).

core/include/fxcrt/fx_ext.h

Index: core/include/fxcrt/fx_ext.h
diff --git a/core/include/fxcrt/fx_ext.h b/core/include/fxcrt/fx_ext.h
index f13d37caf4f99e954449fc5c09e6a95333a54d76..908d6c3fe5bbfd83608414569dbe09ffba73d0aa 100644
--- a/core/include/fxcrt/fx_ext.h
+++ b/core/include/fxcrt/fx_ext.h
@@ -10,6 +10,9 @@
 #include <cctype>
 #include <cwctype>
 
+#ifdef PDF_ENABLE_XFA
+#include "fx_string.h"
+#endif
 #include "fx_system.h"
 
 FX_FLOAT FXSYS_tan(FX_FLOAT a);
@@ -75,6 +78,22 @@ void FX_Random_GenerateMT(FX_DWORD* pBuffer, int32_t iCount);
 
 void FX_Random_GenerateCrypto(FX_DWORD* pBuffer, int32_t iCount);
 
+#ifdef PDF_ENABLE_XFA
+typedef struct FX_GUID {
+  FX_DWORD data1;
+  FX_WORD data2;
+  FX_WORD data3;
+  uint8_t data4[8];
+} FX_GUID, *FX_LPGUID;
+typedef FX_GUID const* FX_LPCGUID;
+
+void FX_GUID_CreateV4(FX_LPGUID pGUID);
+
+void FX_GUID_ToString(FX_LPCGUID pGUID,
+                      CFX_ByteString& bsStr,
+                      FX_BOOL bSeparator = TRUE);
+
+#endif
 template <class baseType>
 class CFX_SSortTemplate {
  public: