[8u20] Request for approval for: 8033917 Keep track of file paths in file streams and channels for instrumentation purposes

[Staffan Larsen]

Please approve this change for 8u20.

bug: https://bugs.openjdk.java.net/browse/JDK-8033917
jdk9 changeset: http://hg.openjdk.java.net/jdk9/dev/jdk/rev/6ec1196d4830
review thread: http://mail.openjdk.java.net/pipermail/core-libs-dev/2014-February/024918.html

Thanks,
/Staffan