RFR [8u-dev]:8072384:Setting IP_TOS on java.net sockets not working on unix

[Seán Coffey]

Michael,

I'd like to backport this fix to JDK 8u60. The port is pretty much the 
same as 9 except for modular path changes. The OptionsTest modified in 
jdk9 fix does not exist in jdk8u (test was for new API in JDK 9)

As a result, I was able to modify the jdk/net/Sockets/Test.java test 
instead. Only real way to test this in any case is via network snoops 
and they look good.

bug report : https://bugs.openjdk.java.net/browse/JDK-8072384
jdk 8u webrev : 
http://cr.openjdk.java.net/~coffeys/webrev.8072384.8u/webrev/

-- 
Regards,
Sean.