Simplify handler initialization for InputConnectionFactory

Simplify handler initialization for InputConnectionFactory

As a follow-up to https://codereview.chromium.org/2543893002/,
we make the code easy to read and remove unnecessary findbug suppression.

BUG=668692
Committed: https://crrev.com/4df6fe2be559a7b87411d369c401efd62ed01353
Cr-Commit-Position: refs/heads/master@{#436218}

[Changwan Ryu, 2016-12-02 08:57:50]

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

[commit-bot: I haz the power, 2016-12-02 08:58:08]

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

[Changwan Ryu, 2016-12-02 09:05:51]

changwan@chromium.org changed reviewers:
+ aelias@chromium.org, torne@chromium.org

[commit-bot: I haz the power, 2016-12-02 09:38:35]

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

[commit-bot: I haz the power, 2016-12-02 09:38:36]

Dry run: This issue passed the CQ dry run.

[Torne, 2016-12-02 12:14:27]

LGTM, thanks for doing this followup!

[Changwan Ryu, 2016-12-05 01:17:25]

The CQ bit was checked by changwan@chromium.org

[commit-bot: I haz the power, 2016-12-05 01:17:33]

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, 2016-12-05 02:02:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480900645220110, "parent_rev":
"c58b7b012d7e50ba110f4936fbae3a985db5a9d9", "commit_rev":
"2065a3d179ab5c765870f34b8f6b9e89ee9dc596"}

[commit-bot: I haz the power, 2016-12-05 02:02:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-05 02:03:54]

Description was changed from

==========
Simplify handler initialization for InputConnectionFactory

As a follow-up to https://codereview.chromium.org/2543893002/,
we make the code easy to read and remove unnecessary findbug suppression.

BUG=668692
==========

to

==========
Simplify handler initialization for InputConnectionFactory

As a follow-up to https://codereview.chromium.org/2543893002/,
we make the code easy to read and remove unnecessary findbug suppression.

BUG=668692

Committed: https://crrev.com/4df6fe2be559a7b87411d369c401efd62ed01353
Cr-Commit-Position: refs/heads/master@{#436218}
==========

[commit-bot: I haz the power, 2016-12-05 02:03:54]

Patchset 1 (id:??) landed as
https://crrev.com/4df6fe2be559a7b87411d369c401efd62ed01353
Cr-Commit-Position: refs/heads/master@{#436218}