RFR: 8209345: Merge SATBMarkQueueFilter into SATBMarkQueueSet

[Kim Barrett]

> On Aug 13, 2018, at 4:03 AM, Aleksey Shipilev <shade at redhat.com> wrote:
> 
> On 08/13/2018 04:08 AM, Kim Barrett wrote:
>> Please review this change that eliminates SATBMarkQueueFilter in favor
>> of an extension to SATBMarkQueueSet.  The QSet's _filter member and
>> filter function that invokes it are replaced by a virtual function on
>> the QSet.  G1SATBMarkQueueSet provides an implementation copied from
>> the former G1SATBMarkQueueFilter.
>> 
>> Changed SATBMarkQueueSet's constructor and destructor from public to
>> protected, since it's a base class.  Also made initialize protected,
>> as it should only be called from derived classs.
>> 
>> This changeset is based on the in-review change for JDK-8209396.
>> http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2018-August/022868.html
>> 
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8209345
>> 
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8209345/open.00/
> 
> Looks good.
> 
> -Aleksey

Thanks.