fpdfsdk/ differences with XFA (for didactic purposes only).

fpdfsdk/include/javascript/IJavaScript.h

Index: fpdfsdk/include/javascript/IJavaScript.h
diff --git a/fpdfsdk/include/javascript/IJavaScript.h b/fpdfsdk/include/javascript/IJavaScript.h
index 79247c868ab0e9b3353108350fc56bd45fa249ae..7eab25fe88a4caec9fac1616b36955923a2b9ce8 100644
--- a/fpdfsdk/include/javascript/IJavaScript.h
+++ b/fpdfsdk/include/javascript/IJavaScript.h
@@ -7,6 +7,9 @@
 #ifndef FPDFSDK_INCLUDE_JAVASCRIPT_IJAVASCRIPT_H_
 #define FPDFSDK_INCLUDE_JAVASCRIPT_IJAVASCRIPT_H_
 
+#ifdef PDF_ENABLE_XFA
+#include "../../../xfa/include/fxjse/fxjse.h"
+#endif
 #include "core/include/fxcrt/fx_string.h"
 #include "core/include/fxcrt/fx_system.h"
 
@@ -148,6 +151,13 @@ class IJS_Runtime {
                       const wchar_t* script,
                       CFX_WideString* info) = 0;
 
+#ifdef PDF_ENABLE_XFA
+  virtual FX_BOOL GetHValueByName(const CFX_ByteStringC& utf8Name,
+                                  FXJSE_HVALUE hValue) = 0;
+  virtual FX_BOOL SetHValueByName(const CFX_ByteStringC& utf8Name,
+                                  FXJSE_HVALUE hValue) = 0;
+
+#endif
  protected:
   IJS_Runtime() {}
 };