Bug #38374 --> more updates for external helper application support. (NOT PART OF THE BUILD)

code review will come when this is done and gets turned on.

export our rdf vocabulary header file.

uriloader/exthandler/makefile.win

@@ -36,6 +36,10 @@ XPIDLSRCS=						                \
     .\nsIExternalProtocolService.idl  \
 		$(NULL)
 
+EXPORTS=	            					  \
+	        nsHelperAppRDF.h				\
+          $(NULL)
+
 LIBRARY_NAME=exthandlers_s
 
 CPP_OBJS =                                          \