Makes aura::LayoutManager be destroyed before properties

Makes aura::LayoutManager be destroyed before properties

I want to store some state in properties that needs to be valid from
the LayoutManagers destructor. This means the LayoutManager needs to
be destroyed before owned properties.

BUG=603369
TEST=none
R=ben@chromium.org

Committed: https://crrev.com/085a2833a750add15969c26819dfafd1ec610ebe
Cr-Commit-Position: refs/heads/master@{#388556}

[Ben Goodger (Google), 2016-04-20 18:25:39]

lgtm

[sky, 2016-04-20 18:56:00]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2016-04-20 18:56:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1910483002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1910483002/20001

[commit-bot: I haz the power, 2016-04-20 19:40:55]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-04-22 19:25:43]

Description was changed from

==========
Makes aura::LayoutManager be destroyed before properties

I want to store some state in properties that needs to be valid from
the LayoutManagers destructor. This means the LayoutManager needs to
be destroyed before owned properties.

BUG=603369
TEST=none
R=ben@chromium.org
==========

to

==========
Makes aura::LayoutManager be destroyed before properties

I want to store some state in properties that needs to be valid from
the LayoutManagers destructor. This means the LayoutManager needs to
be destroyed before owned properties.

BUG=603369
TEST=none
R=ben@chromium.org

Committed: https://crrev.com/085a2833a750add15969c26819dfafd1ec610ebe
Cr-Commit-Position: refs/heads/master@{#388556}
==========

[commit-bot: I haz the power, 2016-04-22 19:25:44]

Patchset 2 (id:??) landed as
https://crrev.com/085a2833a750add15969c26819dfafd1ec610ebe
Cr-Commit-Position: refs/heads/master@{#388556}