Switch HeadlessDevToolsManagerDelegate to use base::Bind.

Switch HeadlessDevToolsManagerDelegate to use base::Bind.

No functional change. Just making the code more consistent with the rest
of the code base as there is no need to use function pointers.

Review-Url: https://codereview.chromium.org/2784733003
Cr-Commit-Position: refs/heads/master@{#460690}
Committed: https://chromium.googlesource.com/chromium/src/+/3f011bc145e8ced167cbada52f56e3c1775b1cd9

[Lei Zhang, 2017-03-29 21:14:06]

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

[commit-bot: I haz the power, 2017-03-29 21:15:11]

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

[Lei Zhang, 2017-03-29 21:52:50]

thestig@chromium.org changed reviewers:
+ alexclarke@chromium.org

[commit-bot: I haz the power, 2017-03-29 22:51:40]

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

[commit-bot: I haz the power, 2017-03-29 22:51:41]

Dry run: This issue passed the CQ dry run.

[alex clarke (OOO till 29th), 2017-03-30 07:28:53]

lgtm

[Lei Zhang, 2017-03-30 07:36:14]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2017-03-30 07:36:32]

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, 2017-03-30 07:40:33]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1490859374486440,
"parent_rev": "d8f6b4a8674574b435114e40b240af7741922f37", "commit_rev":
"3f011bc145e8ced167cbada52f56e3c1775b1cd9"}

[commit-bot: I haz the power, 2017-03-30 07:41:14]

Description was changed from

==========
Switch HeadlessDevToolsManagerDelegate to use base::Bind.

No functional change. Just making the code more consistent with the rest
of the code base as there is no need to use function pointers.
==========

to

==========
Switch HeadlessDevToolsManagerDelegate to use base::Bind.

No functional change. Just making the code more consistent with the rest
of the code base as there is no need to use function pointers.

Review-Url: https://codereview.chromium.org/2784733003
Cr-Commit-Position: refs/heads/master@{#460690}
Committed:
https://chromium.googlesource.com/chromium/src/+/3f011bc145e8ced167cbada52f56...
==========

[commit-bot: I haz the power, 2017-03-30 07:41:15]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/3f011bc145e8ced167cbada52f56...