8213224: Move code related to GC threads calculation out of AdaptiveSizePolicy
Summary: Consolidate code related to GC threads calculation into a single class
Reviewed-by: tschatzl, pliden
Welcome to the JDK!
===================
For information about building the JDK, including how to retrieve all
of the source code, please see either of these files:
* doc/building.html (html version)
* doc/building.md (markdown version)
See http://openjdk.java.net/ for more information about the OpenJDK
Community and the JDK.