[scheduler] Move DatabaseAccess tasks to loading tq.

[scheduler] Move DatabaseAccess tasks to loading tq.

Posting DatabaseAccess tasks to unthrottled task queue can lead to running websql callbacks when the page is suspended, and it will cause callback to cancel itself. 

Post DatabaseAccess tasks to loading queue, which can be suspended and make sure that these tasks run only when page isn't suspended.

R=haraken@chromium.org
CC=skyostil@chromium.org

BUG=700792
Review-Url: https://codereview.chromium.org/2752003002
Cr-Commit-Position: refs/heads/master@{#457145}
Committed: https://chromium.googlesource.com/chromium/src/+/27e68ff784ac0798b46bc596434dd50fbd673887

[altimin, 2017-03-15 16:45:50]

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

[altimin, 2017-03-15 16:46:00]

PTAL

[commit-bot: I haz the power, 2017-03-15 16:46:11]

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

[Sami, 2017-03-15 16:50:37]

skyostil@chromium.org changed reviewers:
+ skyostil@chromium.org

[Sami, 2017-03-15 16:50:37]

Non-owner lgtm.

[haraken, 2017-03-15 16:51:44]

LGTM. Please add a more explanation to the CL description.

[altimin, 2017-03-15 16:57:43]

Description was changed from

==========
[scheduler] Move DatabaseAccess tasks to loading tq

R=haraken@chromium.org
CC=skyostil@chromium.org

BUG=700792
==========

to

==========
[scheduler] Move DatabaseAccess tasks to loading tq.

Posting DatabaseAccess tasks to unthrottled task queue can lead to running
websql callbacks when the page is suspended, and it will cause callback to
cancel itself. 

Post DatabaseAccess tasks to loading queue, which can be suspended and make sure
that these tasks run only when page isn't suspended.

R=haraken@chromium.org
CC=skyostil@chromium.org

BUG=700792
==========

[altimin, 2017-03-15 18:08:45]

The CQ bit was unchecked by altimin@chromium.org

[altimin, 2017-03-15 18:08:45]

The CQ bit was checked by altimin@chromium.org

[commit-bot: I haz the power, 2017-03-15 18:09:18]

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, 2017-03-15 18:23:43]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1489601325750930, "parent_rev":
"979cc161d997ca6f73b6dfeecb7f2a225b1c8140", "commit_rev":
"27e68ff784ac0798b46bc596434dd50fbd673887"}

[commit-bot: I haz the power, 2017-03-15 18:24:22]

Description was changed from

==========
[scheduler] Move DatabaseAccess tasks to loading tq.

Posting DatabaseAccess tasks to unthrottled task queue can lead to running
websql callbacks when the page is suspended, and it will cause callback to
cancel itself. 

Post DatabaseAccess tasks to loading queue, which can be suspended and make sure
that these tasks run only when page isn't suspended.

R=haraken@chromium.org
CC=skyostil@chromium.org

BUG=700792
==========

to

==========
[scheduler] Move DatabaseAccess tasks to loading tq.

Posting DatabaseAccess tasks to unthrottled task queue can lead to running
websql callbacks when the page is suspended, and it will cause callback to
cancel itself. 

Post DatabaseAccess tasks to loading queue, which can be suspended and make sure
that these tasks run only when page isn't suspended.

R=haraken@chromium.org
CC=skyostil@chromium.org

BUG=700792

Review-Url: https://codereview.chromium.org/2752003002
Cr-Commit-Position: refs/heads/master@{#457145}
Committed:
https://chromium.googlesource.com/chromium/src/+/27e68ff784ac0798b46bc596434d...
==========

[commit-bot: I haz the power, 2017-03-15 18:24:23]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/27e68ff784ac0798b46bc596434d...