Use ParentFrameTaskRunners for encodeImageOnEncoderThread

Use ParentFrameTaskRunners for encodeImageOnEncoderThread

encodeImageOnEncoderThread should not use TaskRunnerHelper::get()
because it posts a task from a worker thread to the main thread.
Alternately, it should use ParentFrameTaskRunners.

BUG=637974
Committed: https://crrev.com/03bcb665d7a873fd0694ec012da11d93a5ac4356
Cr-Commit-Position: refs/heads/master@{#412449}

[haraken, 2016-08-17 02:21:50]

haraken@chromium.org changed reviewers:
+ dcheng@chromium.org, kinuko@chromium.org, nhiroki@chromium.org

[haraken, 2016-08-17 02:21:50]

PTAL

Maybe we should move ParentFrameTaskRunners from core/workers/ to core/dom/
(where TaskRunnerHelper exists).

[haraken, 2016-08-17 02:21:56]

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

[commit-bot: I haz the power, 2016-08-17 02:22:26]

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

[kinuko, 2016-08-17 03:39:05]

lgtm

[commit-bot: I haz the power, 2016-08-17 03:57:36]

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

[commit-bot: I haz the power, 2016-08-17 03:57:37]

Dry run: This issue passed the CQ dry run.

[haraken, 2016-08-17 04:18:55]

The CQ bit was checked by haraken@chromium.org

[commit-bot: I haz the power, 2016-08-17 04:19:09]

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, 2016-08-17 04:23:17]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-08-17 04:25:03]

Description was changed from

==========
Use ParentFrameTaskRunners for encodeImageOnEncoderThread

encodeImageOnEncoderThread should not use TaskRunnerHelper::get()
because it posts a task from a worker thread to the main thread.
Alternately, it should use ParentFrameTaskRunners.

BUG=637974
==========

to

==========
Use ParentFrameTaskRunners for encodeImageOnEncoderThread

encodeImageOnEncoderThread should not use TaskRunnerHelper::get()
because it posts a task from a worker thread to the main thread.
Alternately, it should use ParentFrameTaskRunners.

BUG=637974

Committed: https://crrev.com/03bcb665d7a873fd0694ec012da11d93a5ac4356
Cr-Commit-Position: refs/heads/master@{#412449}
==========

[commit-bot: I haz the power, 2016-08-17 04:25:04]

Patchset 2 (id:??) landed as
https://crrev.com/03bcb665d7a873fd0694ec012da11d93a5ac4356
Cr-Commit-Position: refs/heads/master@{#412449}