RFR: 8202945: OopStorage should use GlobalCounter

[Kim Barrett]

Please review this change of OopStorage to use GlobalCounter,
replacing the use of the internal ProtectActive class, and eliminating
the latter.

CR:
https://bugs.openjdk.java.net/browse/JDK-8202945

Webrev:
http://cr.openjdk.java.net/~kbarrett/8202945/open.00/

Testing:
tier{1,2,3} and hs-tier{4,5}