hg: jdk/sandbox: Add EventStream::setReuse. Works for file streams

[erik.gahlin at oracle.com]

Changeset: 528d85d2fce5
Author:    egahlin
Date:      2019-05-27 22:59 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/528d85d2fce5

Add EventStream::setReuse. Works for file streams

! src/jdk.jfr/share/classes/jdk/jfr/consumer/ChunkParser.java
! src/jdk.jfr/share/classes/jdk/jfr/consumer/EventStream.java
+ test/jdk/jdk/jfr/api/consumer/filestream/TestReuse.java