Revert of [Reland] Dont post delayed DoWork for disabled queues.

Revert of [Reland] Dont post delayed DoWork for disabled queues. (patchset #14 id:260001 of https://codereview.chromium.org/2572893002/ )

Reason for revert:
Looks like there's still a bad interaction with the TaskQueueThrottler.

https://bugs.chromium.org/p/chromium/issues/detail?id=693672

Original issue's description:
> Dont post delayed DoWork for disabled queues. We could do this for
> fences too but don't because that would break the throttling logic
> which needs to know when the next delayed task is due to be run.
> 
> Contains a fix for the bug which previously was causing renderer hangs.
> 
> TaskQueue::GetNextScheduledWakeUp must return base::nullopt for 
> disabled queues because we no longer schedule wakeups for those. If we
> don't do this then the TaskQueueThrottler will be fed misleading data
> which causes it to misbehave.
> 
> BUG=671669, 688422, 693672
> 
> Committed: https://crrev.com/cab9842ac55e5b9dab766f11c6e412949d854483
> Cr-Original-Original-Commit-Position: refs/heads/master@{#438962}
> Review-Url: https://codereview.chromium.org/2572893002
> Cr-Original-Commit-Position: refs/heads/master@{#447591}
> Committed: https://chromium.googlesource.com/chromium/src/+/9a8a61516e750796f74869167bb919a05551d4dd
> Review-Url: https://codereview.chromium.org/2572893002
> Cr-Commit-Position: refs/heads/master@{#450679}
> Committed: https://chromium.googlesource.com/chromium/src/+/c4b071b9088980c941d3dea85478b10675a479e6

TBR=skyostil@chromium.org,haraken@chromium.org,altimin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=671669, 688422, 693672
Review-Url: https://codereview.chromium.org/2705703002
Cr-Commit-Position: refs/heads/master@{#451449}
Committed: https://chromium.googlesource.com/chromium/src/+/469e3d5d1a527c19a07df597399abbe44b85aa0f

[alex clarke (OOO till 29th), 2017-02-17 21:42:56]

The CQ bit was checked by alexclarke@chromium.org

[alex clarke (OOO till 29th), 2017-02-17 21:42:57]

Created Revert of [Reland] Dont post delayed DoWork for disabled queues.

[commit-bot: I haz the power, 2017-02-17 21:43:59]

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

[haraken, 2017-02-17 22:52:31]

LGTM

[commit-bot: I haz the power, 2017-02-17 23:47:27]

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

[commit-bot: I haz the power, 2017-02-17 23:47:28]

Try jobs failed on following builders:
  cast_shell_linux on master.tryserver.chromium.linux (JOB_TIMED_OUT, no build
URL)
  chromeos_amd64-generic_chromium_compile_only_ng on
master.tryserver.chromium.linux (JOB_TIMED_OUT, no build URL)
  chromeos_daisy_chromium_compile_only_ng on master.tryserver.chromium.linux
(JOB_TIMED_OUT, no build URL)
  linux_chromium_chromeos_rel_ng on master.tryserver.chromium.linux
(JOB_TIMED_OUT, no build URL)
  linux_chromium_tsan_rel_ng on master.tryserver.chromium.linux (JOB_TIMED_OUT,
no build URL)

[jbudorick, 2017-02-17 23:52:05]

The CQ bit was checked by jbudorick@chromium.org

[commit-bot: I haz the power, 2017-02-17 23:53:20]

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, 2017-02-18 01:54:05]

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

[commit-bot: I haz the power, 2017-02-18 01:54:07]

Try jobs failed on following builders:
  linux_chromium_tsan_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[jbudorick, 2017-02-18 04:17:50]

The CQ bit was checked by jbudorick@chromium.org

[commit-bot: I haz the power, 2017-02-18 04:18:12]

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, 2017-02-18 06:19:08]

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

[commit-bot: I haz the power, 2017-02-18 06:19:09]

Try jobs failed on following builders:
  linux_chromium_asan_rel_ng on master.tryserver.chromium.linux (JOB_TIMED_OUT,
no build URL)

[alex clarke (OOO till 29th), 2017-02-18 09:35:17]

The CQ bit was checked by alexclarke@chromium.org

[commit-bot: I haz the power, 2017-02-18 09:35:26]

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, 2017-02-18 09:44:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487410517006830, "parent_rev":
"4ad0a609fea4c17f2b2d71e446bfae18c956b243", "commit_rev":
"469e3d5d1a527c19a07df597399abbe44b85aa0f"}

[commit-bot: I haz the power, 2017-02-18 09:44:39]

Description was changed from

==========
Revert of [Reland] Dont post delayed DoWork for disabled queues. (patchset #14
id:260001 of https://codereview.chromium.org/2572893002/ )

Reason for revert:
Looks like there's still a bad interaction with the TaskQueueThrottler.

https://bugs.chromium.org/p/chromium/issues/detail?id=693672

Original issue's description:
> Dont post delayed DoWork for disabled queues. We could do this for
> fences too but don't because that would break the throttling logic
> which needs to know when the next delayed task is due to be run.
> 
> Contains a fix for the bug which previously was causing renderer hangs.
> 
> TaskQueue::GetNextScheduledWakeUp must return base::nullopt for 
> disabled queues because we no longer schedule wakeups for those. If we
> don't do this then the TaskQueueThrottler will be fed misleading data
> which causes it to misbehave.
> 
> BUG=671669, 688422, 693672
> 
> Committed: https://crrev.com/cab9842ac55e5b9dab766f11c6e412949d854483
> Cr-Original-Original-Commit-Position: refs/heads/master@{#438962}
> Review-Url: https://codereview.chromium.org/2572893002
> Cr-Original-Commit-Position: refs/heads/master@{#447591}
> Committed:
https://chromium.googlesource.com/chromium/src/+/9a8a61516e750796f74869167bb9...
> Review-Url: https://codereview.chromium.org/2572893002
> Cr-Commit-Position: refs/heads/master@{#450679}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c4b071b9088980c941d3dea85478...

TBR=skyostil@chromium.org,haraken@chromium.org,altimin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=671669, 688422, 693672
==========

to

==========
Revert of [Reland] Dont post delayed DoWork for disabled queues. (patchset #14
id:260001 of https://codereview.chromium.org/2572893002/ )

Reason for revert:
Looks like there's still a bad interaction with the TaskQueueThrottler.

https://bugs.chromium.org/p/chromium/issues/detail?id=693672

Original issue's description:
> Dont post delayed DoWork for disabled queues. We could do this for
> fences too but don't because that would break the throttling logic
> which needs to know when the next delayed task is due to be run.
> 
> Contains a fix for the bug which previously was causing renderer hangs.
> 
> TaskQueue::GetNextScheduledWakeUp must return base::nullopt for 
> disabled queues because we no longer schedule wakeups for those. If we
> don't do this then the TaskQueueThrottler will be fed misleading data
> which causes it to misbehave.
> 
> BUG=671669, 688422, 693672
> 
> Committed: https://crrev.com/cab9842ac55e5b9dab766f11c6e412949d854483
> Cr-Original-Original-Commit-Position: refs/heads/master@{#438962}
> Review-Url: https://codereview.chromium.org/2572893002
> Cr-Original-Commit-Position: refs/heads/master@{#447591}
> Committed:
https://chromium.googlesource.com/chromium/src/+/9a8a61516e750796f74869167bb9...
> Review-Url: https://codereview.chromium.org/2572893002
> Cr-Commit-Position: refs/heads/master@{#450679}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c4b071b9088980c941d3dea85478...

TBR=skyostil@chromium.org,haraken@chromium.org,altimin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=671669, 688422, 693672

Review-Url: https://codereview.chromium.org/2705703002
Cr-Commit-Position: refs/heads/master@{#451449}
Committed:
https://chromium.googlesource.com/chromium/src/+/469e3d5d1a527c19a07df597399a...
==========

[commit-bot: I haz the power, 2017-02-18 09:44:40]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/469e3d5d1a527c19a07df597399a...