[8u40] RFR 8046598: Scalable Native Memory Tracking development

[Zhengyu Gu]

This is 8u40 backport. The patch did not come out clean, but conflicts 
are minor, mainly caused by line shifting.

The only change is in MallocSiteTable.cpp #255

#ifdef _WINDOWS
  253     os::naked_short_sleep(1);
  254 #else
  255     os::NakedYield();
  256 #endif

changed from os::naked_yield() => os::NakedYield(), since the renaming 
changeset is not in 8u40.


Bug: https://bugs.openjdk.java.net/browse/JDK-8046598
Webrev: http://cr.openjdk.java.net/~zgu/8046598_8u/webrev.00/ 
<http://cr.openjdk.java.net/%7Ezgu/8046598_8u/webrev.00/>

JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/91eeb8807a03


Thanks,

-Zhengyu