Make store buffer more robust to OOM.

Make store buffer more robust to OOM.

R=hpayer@chromium.org
BUG=

Committed: https://crrev.com/a3f5e04c998232c7f6407a99949adac11fd718bd
Cr-Commit-Position: refs/heads/master@{#27876}

[Erik Corry Chromium.org, 2015-04-15 22:54:22]

We used to start the store buffer at 64k for the new pointers and 4k for the old
pointers, with the old pointer area growable to 1Mbyte.  Now we start them both
at the same time, and we make it robust so that if we can't expand the old space
we don't crash out with an OOM.  We may mark a very large number of pages
scan-on-scavenge, but the VM survives.  All sizes doubled for 64 bit.

[Hannes Payer (out of office), 2015-04-16 09:31:50]

lgtm, one nit

https://codereview.chromium.org/1086263002/diff/1/src/deoptimizer.cc
File src/deoptimizer.cc (right):

https://codereview.chromium.org/1086263002/diff/1/src/deoptimizer.cc#newcode2811
src/deoptimizer.cc:2811: "Deoptimizer::EnsureCodeForDeoptimizationEntry");
separate cl?

[Erik Corry Chromium.org, 2015-04-16 10:09:44]

The CQ bit was checked by erikcorry@chromium.org

[Erik Corry Chromium.org, 2015-04-16 10:09:44]

The patchset sent to the CQ was uploaded after l-g-t-m from hpayer@chromium.org
Link to the patchset: https://codereview.chromium.org/1086263002/#ps20001
(title: "Remove unrelated change to deoptimizer")

[commit-bot: I haz the power, 2015-04-16 10:09:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1086263002/20001

[Erik Corry Chromium.org, 2015-04-16 10:18:52]

https://codereview.chromium.org/1086263002/diff/1/src/deoptimizer.cc
File src/deoptimizer.cc (right):

https://codereview.chromium.org/1086263002/diff/1/src/deoptimizer.cc#newcode2811
src/deoptimizer.cc:2811: "Deoptimizer::EnsureCodeForDeoptimizationEntry");
On 2015/04/16 09:31:50, Hannes Payer wrote:
> separate cl?

Done.

[commit-bot: I haz the power, 2015-04-16 10:39:53]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-04-16 10:40:09]

Patchset 2 (id:??) landed as
https://crrev.com/a3f5e04c998232c7f6407a99949adac11fd718bd
Cr-Commit-Position: refs/heads/master@{#27876}