[8u-dev]: Request for approval: 8139813: Base heap size on type of boot jdk, not architecture of build machine

[Erik Joelsson]

Hello,

Please approve backport of JDK-8139813 to 8u-dev. Changes for both JDK 9 
and JDK 8u have been reviewed together as the same patch would not quite 
apply.

Bug: https://bugs.openjdk.java.net/browse/JDK-8139813

Review thread: 
http://mail.openjdk.java.net/pipermail/build-dev/2015-October/015722.html

JDK 9 Changeset: http://hg.openjdk.java.net/jdk9/dev/rev/cb3f10185e63

/Erik