Revert Change ServiceManagerConnectionImpl to run service request handlers on the IO thread

Revert Change ServiceManagerConnectionImpl to run service request handlers on the IO thread

Revert: https://codereview.chromium.org/2729733003/

As this is currently crashing on all mash builds, preventing development.

TBR=rockot@chromium.org, jochen@chromium.org, sammc@chromium.org
BUG=700155, 654988
Review-Url: https://codereview.chromium.org/2742523005
Cr-Commit-Position: refs/heads/master@{#456140}
Committed: https://chromium.googlesource.com/chromium/src/+/3c309fdbb3787d140f76c1cfc3ef8a994d8d4a4d

[jonross, 2017-03-10 18:41:53]

The CQ bit was checked by jonross@chromium.org

[commit-bot: I haz the power, 2017-03-10 18:42:40]

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, 2017-03-10 19:54:31]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1489171313934980, "parent_rev":
"a7964169b3c21145980b845d68ff112c8169cd3f", "commit_rev":
"3c309fdbb3787d140f76c1cfc3ef8a994d8d4a4d"}

[commit-bot: I haz the power, 2017-03-10 19:58:35]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1489171313934980, "parent_rev":
"a7964169b3c21145980b845d68ff112c8169cd3f", "commit_rev":
"3c309fdbb3787d140f76c1cfc3ef8a994d8d4a4d"}

[commit-bot: I haz the power, 2017-03-10 19:58:40]

Description was changed from

==========
Revert Change ServiceManagerConnectionImpl to run service request handlers on
the IO thread

Revert: https://codereview.chromium.org/2729733003/

As this is currently crashing on all mash builds, preventing development.

TBR=rockot@chromium.org, jochen@chromium.org, sammc@chromium.org
BUG=700155, 654988
==========

to

==========
Revert Change ServiceManagerConnectionImpl to run service request handlers on
the IO thread

Revert: https://codereview.chromium.org/2729733003/

As this is currently crashing on all mash builds, preventing development.

TBR=rockot@chromium.org, jochen@chromium.org, sammc@chromium.org
BUG=700155, 654988

Review-Url: https://codereview.chromium.org/2742523005
Cr-Commit-Position: refs/heads/master@{#456140}
Committed:
https://chromium.googlesource.com/chromium/src/+/3c309fdbb3787d140f76c1cfc3ef...
==========

[commit-bot: I haz the power, 2017-03-10 19:58:40]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/3c309fdbb3787d140f76c1cfc3ef...