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 c24955fb7cb0de19b294a822a85c4671d9995bfc..3d988d1f9ca603adb7eb609631c9bae06de6d552 100644
--- a/core/include/fxcrt/fx_ext.h
+++ b/core/include/fxcrt/fx_ext.h
@@ -7,6 +7,9 @@
 #ifndef CORE_INCLUDE_FXCRT_FX_EXT_H_
 #define CORE_INCLUDE_FXCRT_FX_EXT_H_
 
+#ifdef PDF_ENABLE_XFA
+#include "fx_string.h"
+#endif
 #include "fx_system.h"
 
 #ifdef __cplusplus
@@ -66,6 +69,28 @@ void FX_Random_GenerateCrypto(FX_DWORD* pBuffer, int32_t iCount);
 #ifdef __cplusplus
 }
 #endif
+#ifdef PDF_ENABLE_XFA
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+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);
+#ifdef __cplusplus
+}
+#endif
+#endif
 template <class baseType>
 class CFX_SSortTemplate {
  public: