[8u-dev] Request for review and approval : 8060170 & 8064407

[Seán Coffey]

Requesting to backport these two enhancements to jdk8u-dev as per 
request from Martin Sawicki.

8060170: Support SIO_LOOPBACK_FAST_PATH option on Windows
JDK 9 changeset : http://hg.openjdk.java.net/jdk9/dev/jdk/rev/26e6402772c8
review thread : 
http://mail.openjdk.java.net/pipermail/nio-dev/2014-October/002797.html

8064407: (fc) FileChannel transferTo should use TransmitFile on Windows
JDK 9 changeset : http://hg.openjdk.java.net/jdk9/dev/jdk/rev/ba6d8f56003b
review thread : 
http://mail.openjdk.java.net/pipermail/nio-dev/2014-November/002824.html

There was a minor patch import problem with 8064407 (post unshuffling). 
The src/java.base/windows/classes/sun/nio/ch/FileDispatcherImpl.java 
source differs slightly. (append flag removed/modified in JDK 9) Only 
the first hunk failed. Nothing major.

I've posted jdk8u-dev webrev to here : 
http://cr.openjdk.java.net/~coffeys/webrev.MSBackports.8u/webrev/
Would be good if you can review Alan. JPRT build & tests are green.

regards,
Sean.