Makes WindowTree take the AccessPolicy

Makes WindowTree take the AccessPolicy

Having callers decide the policy makes more sense, and will be useful
as we add more policies (such as the director).

BUG=590955
TEST=covered by tests
R=ben@chromium.org

Committed: https://crrev.com/24475251b51b0e76fe011351626473034e80e332
Cr-Commit-Position: refs/heads/master@{#380777}

[Ben Goodger (Google), 2016-03-11 23:02:39]

lgtm

[sky, 2016-03-11 23:04:35]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2016-03-11 23:05:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1782123003/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1782123003/60001

[commit-bot: I haz the power, 2016-03-11 23:11:02]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2016-03-11 23:11:55]

Description was changed from

==========
Makes WindowTree take the AccessPolicy

Having callers decide the policy makes more sense, and will be useful
as we add more policies (such as the director).

BUG=590955
TEST=covered by tests
R=ben@chromium.org
==========

to

==========
Makes WindowTree take the AccessPolicy

Having callers decide the policy makes more sense, and will be useful
as we add more policies (such as the director).

BUG=590955
TEST=covered by tests
R=ben@chromium.org

Committed: https://crrev.com/24475251b51b0e76fe011351626473034e80e332
Cr-Commit-Position: refs/heads/master@{#380777}
==========

[commit-bot: I haz the power, 2016-03-11 23:11:55]

Patchset 4 (id:??) landed as
https://crrev.com/24475251b51b0e76fe011351626473034e80e332
Cr-Commit-Position: refs/heads/master@{#380777}