Use PostTaskAndReplyWithResult in plugin_service_impl.cc.

Use PostTaskAndReplyWithResult in plugin_service_impl.cc.

BUG=

Review-Url: https://codereview.chromium.org/2873963005
Cr-Commit-Position: refs/heads/master@{#471549}
Committed: https://chromium.googlesource.com/chromium/src/+/9292e072c4320d96038eb66020e0676d38232773

[fdoray, 2017-05-11 13:47:37]

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

[commit-bot: I haz the power, 2017-05-11 13:48:02]

Dry run: CQ is trying da patch.

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

[fdoray, 2017-05-11 14:54:59]

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

[fdoray, 2017-05-11 14:54:59]

PTAL

I plan to use this CL as an example of good coding practices at
https://chromium.googlesource.com/chromium/src/+/master/docs/threading_and_ta...

[commit-bot: I haz the power, 2017-05-11 15:36:03]

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

[commit-bot: I haz the power, 2017-05-11 15:36:04]

Dry run: This issue passed the CQ dry run.

[jam, 2017-05-12 19:51:43]

lgtm

[fdoray, 2017-05-13 01:47:37]

The CQ bit was checked by fdoray@chromium.org

[commit-bot: I haz the power, 2017-05-13 01:48:09]

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, 2017-05-13 03:47:54]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494640057437970, "parent_rev":
"e2c106b1731ffae81d2b7873581b0c25f1e9c567", "commit_rev":
"9292e072c4320d96038eb66020e0676d38232773"}

[commit-bot: I haz the power, 2017-05-13 03:48:10]

Description was changed from

==========
Use PostTaskAndReplyWithResult in plugin_service_impl.cc.

BUG=
==========

to

==========
Use PostTaskAndReplyWithResult in plugin_service_impl.cc.

BUG=

Review-Url: https://codereview.chromium.org/2873963005
Cr-Commit-Position: refs/heads/master@{#471549}
Committed:
https://chromium.googlesource.com/chromium/src/+/9292e072c4320d96038eb66020e0...
==========

[commit-bot: I haz the power, 2017-05-13 03:48:11]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/9292e072c4320d96038eb66020e0...