Reduce new space size during idle times only in memory mode after scavenge, full gc, or finalized i…

Reduce new space size during idle times only in memory mode after scavenge, full gc, or finalized incremental full gc.

BUG=

Committed: https://crrev.com/2b8a40e156f832f785ee6d076e01bc8f6c8fb51d
Cr-Commit-Position: refs/heads/master@{#28552}

[Hannes Payer (out of office), 2015-05-21 12:25:42]

hpayer@chromium.org changed reviewers:
+ ulan@chromium.org

[ulan, 2015-05-21 12:29:31]

https://codereview.chromium.org/1143973003/diff/20001/src/heap/heap.cc
File src/heap/heap.cc (right):

https://codereview.chromium.org/1143973003/diff/20001/src/heap/heap.cc#newcod...
src/heap/heap.cc:4570: (action.type == DO_SCAVENGE || action.type == DO_FULL_GC
||
what about DO_NOTHING and DONE?

[Hannes Payer (out of office), 2015-05-21 12:31:08]

https://codereview.chromium.org/1143973003/diff/20001/src/heap/heap.cc
File src/heap/heap.cc (right):

https://codereview.chromium.org/1143973003/diff/20001/src/heap/heap.cc#newcod...
src/heap/heap.cc:4570: (action.type == DO_SCAVENGE || action.type == DO_FULL_GC
||
On 2015/05/21 12:29:31, ulan wrote:
> what about DO_NOTHING and DONE?

I think it just makes sense after an actual GC, because new space got evacuated.

[ulan, 2015-05-21 12:32:29]

lgtm

[Hannes Payer (out of office), 2015-05-21 12:33:36]

The CQ bit was checked by hpayer@chromium.org

[commit-bot: I haz the power, 2015-05-21 12:33:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1143973003/20001

[commit-bot: I haz the power, 2015-05-21 13:09:40]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-21 13:09:47]

Patchset 2 (id:??) landed as
https://crrev.com/2b8a40e156f832f785ee6d076e01bc8f6c8fb51d
Cr-Commit-Position: refs/heads/master@{#28552}