memory_coordinator: Use TimeTicks to suppress memory condition update

memory_coordinator: Use TimeTicks to suppress memory condition update

Before this CL ForceSetMemoryCondition() was implemented by rescheduling
the task which updates memory condition. It resulted in not calling
UpdateConditionIfNeeded() until a given interval is passed. This is no
longer an expected behavior because UpdateConditionIfNeeded() does more
work than just updating condition. Instead of rescheduing the task, add a
TimeTicks to suppress memory condition update for a given interval.

BUG=696844
Review-Url: https://codereview.chromium.org/2832753002
Cr-Commit-Position: refs/heads/master@{#465951}
Committed: https://chromium.googlesource.com/chromium/src/+/e475d97ed39fecfb67814dcf0607746f8aea1cb4

[bashi, 2017-04-20 03:40:32]

The CQ bit was checked by bashi@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-20 03:40:59]

Dry run: 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, 2017-04-20 04:03:46]

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

[commit-bot: I haz the power, 2017-04-20 04:03:47]

Dry run: Try jobs failed on following builders:
  cast_shell_android on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/cast_shell_a...)

[bashi, 2017-04-20 04:18:31]

The CQ bit was checked by bashi@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-20 04:18:48]

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

[bashi, 2017-04-20 05:02:07]

bashi@chromium.org changed reviewers:
+ haraken@chromium.org

[bashi, 2017-04-20 05:02:07]

PTAL. Existing unittests should cover the change.

[commit-bot: I haz the power, 2017-04-20 05:08:54]

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

[commit-bot: I haz the power, 2017-04-20 05:08:54]

Dry run: This issue passed the CQ dry run.

[haraken, 2017-04-20 07:39:28]

LGTM

[bashi, 2017-04-20 08:32:27]

The CQ bit was checked by bashi@chromium.org

[commit-bot: I haz the power, 2017-04-20 08:32:55]

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, 2017-04-20 08:36:40]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1492677147892220,
"parent_rev": "3040583e9e0ddd28ac850e615b8d99418cfa98a3", "commit_rev":
"e475d97ed39fecfb67814dcf0607746f8aea1cb4"}

[commit-bot: I haz the power, 2017-04-20 08:36:50]

Description was changed from

==========
memory_coordinator: Use TimeTicks to suppress memory condition update

Before this CL ForceSetMemoryCondition() was implemented by rescheduling
the task which updates memory condition. It resulted in not calling
UpdateConditionIfNeeded() until a given interval is passed. This is no
longer an expected behavior because UpdateConditionIfNeeded() does more
work than just updating condition. Instead of rescheduing the task, add a
TimeTicks to suppress memory condition update for a given interval.

BUG=696844
==========

to

==========
memory_coordinator: Use TimeTicks to suppress memory condition update

Before this CL ForceSetMemoryCondition() was implemented by rescheduling
the task which updates memory condition. It resulted in not calling
UpdateConditionIfNeeded() until a given interval is passed. This is no
longer an expected behavior because UpdateConditionIfNeeded() does more
work than just updating condition. Instead of rescheduing the task, add a
TimeTicks to suppress memory condition update for a given interval.

BUG=696844

Review-Url: https://codereview.chromium.org/2832753002
Cr-Commit-Position: refs/heads/master@{#465951}
Committed:
https://chromium.googlesource.com/chromium/src/+/e475d97ed39fecfb67814dcf0607...
==========

[commit-bot: I haz the power, 2017-04-20 08:36:51]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/e475d97ed39fecfb67814dcf0607...