RFR(XS): 8213604: Fix missing includes after JDK-8212673

[Thomas Schatzl]

Hi,

On Fri, 2018-11-09 at 11:02 +0000, Doerr, Martin wrote:
> http://cr.openjdk.java.net/~mdoerr/8213604_missing_include/webrev.00/

  change looks good to me.

Thanks,
  Thomas