Remove usage of WorkerPool from test_completion_callback_unittest.cc.

Remove usage of WorkerPool from test_completion_callback_unittest.cc.

WorkerPool is being deprecated.

BUG=659191
Committed: https://crrev.com/5e2b890a2d2663595aa141e3f70c1af94d46c897
Cr-Commit-Position: refs/heads/master@{#441198}

[fdoray, 2017-01-01 18:36:04]

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

[commit-bot: I haz the power, 2017-01-01 18:36:09]

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, 2017-01-01 18:41:19]

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

[commit-bot: I haz the power, 2017-01-01 18:41:19]

Dry run: Try jobs failed on following builders:
  cast_shell_linux on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/cast_shell_linu...)
  linux_chromium_chromeos_ozone_rel_ng on master.tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  mac_chromium_rel_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[fdoray, 2017-01-01 19:30:19]

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

[commit-bot: I haz the power, 2017-01-01 19:30:30]

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, 2017-01-01 19:55:55]

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

[commit-bot: I haz the power, 2017-01-01 19:55:59]

Dry run: This issue passed the CQ dry run.

[fdoray, 2017-01-01 20:00:05]

Description was changed from

==========
Use TaskScheduler instead of WorkerPool in test_completion_callback_unittest.cc.

The following traits are used:

Priority: Inherited (default)
  The priority is inherited from the calling context (i.e. TaskTraits
  are initialized with the priority of the current task).

Shutdown behavior: CONTINUE_ON_SHUTDOWN
  Tasks posted with this mode which have not started executing before
  shutdown is initiated will never run. Tasks with this mode running at
  shutdown will be ignored (the worker will not be joined).

  Note: Tasks that were previously posted to base::WorkerPool should
  use this shutdown behavior because this is how base::WorkerPool
  handles all its tasks.

Does Not Block (default):
  Tasks without the MayBlock() and WithBaseSyncPrimitives() traits
  may not block.

BUG=659191
==========

to

==========
Remove usage of WorkerPool from test_completion_callback_unittest.cc.

WorkerPool is being deprecated.

BUG=659191
==========

[fdoray, 2017-01-01 20:00:21]

fdoray@chromium.org changed reviewers:
+ asanka@chromium.org

[fdoray, 2017-01-01 20:00:21]

PTAL

[asanka, 2017-01-03 19:29:19]

lgtm

[fdoray, 2017-01-03 19:39:33]

The CQ bit was checked by fdoray@chromium.org

[commit-bot: I haz the power, 2017-01-03 19:39:58]

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, 2017-01-03 20:09:01]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1483472373300100,
"parent_rev": "e32f51c6aeefe5b2f4f2e8efaf2f969ca202de7d", "commit_rev":
"05ac807e19b2bc588a36d8d69b81f6d9a0087ffd"}

[commit-bot: I haz the power, 2017-01-03 20:09:28]

Description was changed from

==========
Remove usage of WorkerPool from test_completion_callback_unittest.cc.

WorkerPool is being deprecated.

BUG=659191
==========

to

==========
Remove usage of WorkerPool from test_completion_callback_unittest.cc.

WorkerPool is being deprecated.

BUG=659191

Review-Url: https://codereview.chromium.org/2606213003
==========

[commit-bot: I haz the power, 2017-01-03 20:09:29]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2017-01-03 20:13:23]

Description was changed from

==========
Remove usage of WorkerPool from test_completion_callback_unittest.cc.

WorkerPool is being deprecated.

BUG=659191

Review-Url: https://codereview.chromium.org/2606213003
==========

to

==========
Remove usage of WorkerPool from test_completion_callback_unittest.cc.

WorkerPool is being deprecated.

BUG=659191

Committed: https://crrev.com/5e2b890a2d2663595aa141e3f70c1af94d46c897
Cr-Commit-Position: refs/heads/master@{#441198}
==========

[commit-bot: I haz the power, 2017-01-03 20:13:24]

Patchset 2 (id:??) landed as
https://crrev.com/5e2b890a2d2663595aa141e3f70c1af94d46c897
Cr-Commit-Position: refs/heads/master@{#441198}