Moves creation of LockLayoutManager to common code

Moves creation of LockLayoutManager to common code

BUG=648676
TEST=covered by tests
R=jamescook@chromium.org

Committed: https://crrev.com/3d2675393d10a8d609925114e53f7c77757ac4b4
Cr-Commit-Position: refs/heads/master@{#419845}

[James Cook, 2016-09-20 18:24:03]

LGTM and I'll LGTM the other one too

[sky, 2016-09-20 19:35:20]

The CQ bit was checked by sky@chromium.org

[sky, 2016-09-20 19:35:20]

The patchset sent to the CQ was uploaded after l-g-t-m from
jamescook@chromium.org
Link to the patchset: https://codereview.chromium.org/2352153002/#ps20001
(title: "merge")

[commit-bot: I haz the power, 2016-09-20 19:35:49]

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, 2016-09-20 20:03:17]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-20 20:05:16]

Description was changed from

==========
Moves creation of LockLayoutManager to common code

BUG=648676
TEST=covered by tests
R=jamescook@chromium.org
==========

to

==========
Moves creation of LockLayoutManager to common code

BUG=648676
TEST=covered by tests
R=jamescook@chromium.org

Committed: https://crrev.com/3d2675393d10a8d609925114e53f7c77757ac4b4
Cr-Commit-Position: refs/heads/master@{#419845}
==========

[commit-bot: I haz the power, 2016-09-20 20:05:17]

Patchset 2 (id:??) landed as
https://crrev.com/3d2675393d10a8d609925114e53f7c77757ac4b4
Cr-Commit-Position: refs/heads/master@{#419845}