[heap] Simplify adjusting of live bytes.

[heap] Simplify adjusting of live bytes.

We never increment live bytes concurrent to the sweeper.

BUG=

Committed: https://crrev.com/d3f2213b61ea33473f0fa0bc49bc2a1209c24d9b
Cr-Commit-Position: refs/heads/master@{#41097}

[ulan, 2016-11-16 12:36:16]

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

[ulan, 2016-11-16 12:36:17]

ptal

[Michael Lippautz, 2016-11-16 13:55:24]

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

[Michael Lippautz, 2016-11-16 13:55:24]

LGTM

+Hannes

I checked how the counters are used and from my understand everything is correct
here.

[ulan, 2016-11-17 09:25:09]

The CQ bit was checked by ulan@chromium.org

[commit-bot: I haz the power, 2016-11-17 09:25:15]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-17 09:26:44]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-17 09:26:45]

Try jobs failed on following builders:
  v8_android_arm_compile_rel on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_android_arm_compile_rel/...)
  v8_linux64_asan_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_asan_rel_ng/buil...)
  v8_linux64_avx2_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng/buil...)
  v8_linux_dbg_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_dbg_ng/builds/16403)
  v8_linux_gcc_compile_rel on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_gcc_compile_rel/bu...)
  v8_linux_mips64el_compile_rel on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_mips64el_compile_r...)
  v8_linux_mipsel_compile_rel on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_mipsel_compile_rel...)
  v8_linux_nodcheck_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_nodcheck_rel_ng/bu...)
  v8_linux_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_rel_ng/builds/16324)
  v8_presubmit on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/28752)
  v8_win_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_win_rel_ng/builds/18030)

[ulan, 2016-11-17 15:13:49]

The CQ bit was checked by ulan@chromium.org

[ulan, 2016-11-17 15:13:49]

The patchset sent to the CQ was uploaded after l-g-t-m from
mlippautz@chromium.org
Link to the patchset: https://codereview.chromium.org/2504193002/#ps20001
(title: "rebase")

[commit-bot: I haz the power, 2016-11-17 15:13:58]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-17 15:34:06]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-17 15:34:08]

Try jobs failed on following builders:
  v8_linux64_avx2_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng/buil...)
  v8_linux64_avx2_rel_ng_triggered on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng_trig...)

[Hannes Payer (out of office), 2016-11-18 07:15:52]

LGTM

[ulan, 2016-11-18 10:33:49]

The CQ bit was checked by ulan@chromium.org

[ulan, 2016-11-18 10:33:50]

The patchset sent to the CQ was uploaded after l-g-t-m from
mlippautz@chromium.org, hpayer@chromium.org
Link to the patchset: https://codereview.chromium.org/2504193002/#ps40001
(title: "fix test")

[commit-bot: I haz the power, 2016-11-18 10:33:53]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-18 11:11:37]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-11-18 11:12:06]

Description was changed from

==========
[heap] Simplify adjusting of live bytes.

We never increment live bytes concurrent to the sweeper.

BUG=
==========

to

==========
[heap] Simplify adjusting of live bytes.

We never increment live bytes concurrent to the sweeper.

BUG=

Committed: https://crrev.com/d3f2213b61ea33473f0fa0bc49bc2a1209c24d9b
Cr-Commit-Position: refs/heads/master@{#41097}
==========

[commit-bot: I haz the power, 2016-11-18 11:12:07]

Patchset 3 (id:??) landed as
https://crrev.com/d3f2213b61ea33473f0fa0bc49bc2a1209c24d9b
Cr-Commit-Position: refs/heads/master@{#41097}