RFR(S) 8154752: Cleanup initialization of G1Policy

[Thomas Schatzl]

Hi,

On Thu, 2016-04-21 at 09:53 +0200, Mikael Gerdin wrote:
> Hi all,
> 
> Please review this small cleanup partially suggested in the review of
> 8154154.
> The change modifies G1Policy to initialize its members in the 
> initialization list instead of in the constructor body and clarifies
> the 
> dependencies that the G1Policy::init method has on G1CollectedHeap by
> forcing a caller to pass a heap and collection set pointer.
> The reasoning behind forcing the caller to pass a G1CollectionSet* is
> that I want to move towards only exposing "const G1CollectionSet*" in
> G1CollectedHeap. G1Policy is one of the places where it's clearly 
> necessary to have a mutable G1CollectionSet.
> 
> Testing: RBT GC Testing
> Bug: https://bugs.openjdk.java.net/browse/JDK-8154752
> Webrev: http://cr.openjdk.java.net/~mgerdin/8154752/webrev.0

  looks good.

Thomas