Added an IDL file to the make. Effects Windows build only. r=KMcCluskey b=36796

gfx/idl/makefile.win

@@ -31,6 +31,7 @@ XPIDLSRCS =               \
   .\nsIScriptableRegion.idl          \
   .\nsIScreen.idl          \
   .\nsIScreenManager.idl          \
+  .\nsIPrintOptions.idl     \
   $(NULL)
 
 EXPORTS=                  \