When context disposal rate is high and we cannot perform a full GC, we do nothing until the context…

When context disposal rate is high and we cannot perform a full GC, we do nothing until the context disposal rate becomes lower.

BUG=chromium:473351
LOG=n

Committed: https://crrev.com/bc9e53406ee92a96a689bd5f0430a93927baeee0
Cr-Commit-Position: refs/heads/master@{#28416}

[Hannes Payer (out of office), 2015-05-05 05:32:00]

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

[ulan, 2015-05-05 10:07:10]

lgtm

[Hannes Payer (out of office), 2015-05-06 08:32:43]

The CQ bit was checked by hpayer@chromium.org

[commit-bot: I haz the power, 2015-05-06 08:32:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1118303004/1

[commit-bot: I haz the power, 2015-05-06 09:34:37]

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

[commit-bot: I haz the power, 2015-05-06 09:34:38]

Try jobs failed on following builders:
  v8_linux_nodcheck_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_nodcheck_rel/build...)

[Hannes Payer (out of office), 2015-05-15 07:18:53]

The CQ bit was checked by hpayer@chromium.org

[Hannes Payer (out of office), 2015-05-15 07:18:53]

The patchset sent to the CQ was uploaded after l-g-t-m from ulan@chromium.org
Link to the patchset: https://codereview.chromium.org/1118303004/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-05-15 07:19:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1118303004/20001

[commit-bot: I haz the power, 2015-05-15 07:48:19]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-15 07:48:35]

Patchset 2 (id:??) landed as
https://crrev.com/bc9e53406ee92a96a689bd5f0430a93927baeee0
Cr-Commit-Position: refs/heads/master@{#28416}