Remove usage of ws::Display in ws::UserDisplayManager.

Remove usage of ws::Display in ws::UserDisplayManager.

For external mode we do not have one ws::Display per display::Display.
Have ws::UserDisplayManager take in a display::Display directly instead
of getting them from ws::Display. Also get list of current displays from
display::Screen instead of ws::DisplayManager.

BUG=693081
Review-Url: https://codereview.chromium.org/2692863009
Cr-Commit-Position: refs/heads/master@{#451841}
Committed: https://chromium.googlesource.com/chromium/src/+/310a283e2982013c42652daa4af5c2ad621a5013

[kylechar, 2017-02-16 20:20:33]

kylechar@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2017-02-16 22:11:49]

LGTM

[kylechar, 2017-02-21 14:14:59]

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

[commit-bot: I haz the power, 2017-02-21 14:15:10]

Dry run: 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, 2017-02-21 15:14:41]

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

[commit-bot: I haz the power, 2017-02-21 15:14:42]

Dry run: Try jobs failed on following builders:
  linux_chromium_chromeos_ozone_rel_ng on master.tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[kylechar, 2017-02-21 16:43:44]

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

[commit-bot: I haz the power, 2017-02-21 16:44:23]

Dry run: 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, 2017-02-21 18:09:28]

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

[commit-bot: I haz the power, 2017-02-21 18:09:29]

Dry run: This issue passed the CQ dry run.

[kylechar, 2017-02-21 19:00:59]

The CQ bit was checked by kylechar@chromium.org

[kylechar, 2017-02-21 19:01:00]

The patchset sent to the CQ was uploaded after l-g-t-m from sky@chromium.org
Link to the patchset: https://codereview.chromium.org/2692863009/#ps40001
(title: "Fix mash_browser_tests.")

[commit-bot: I haz the power, 2017-02-21 19:03:00]

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, 2017-02-21 21:06:39]

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

[commit-bot: I haz the power, 2017-02-21 21:06:40]

Try jobs failed on following builders:
  chromium_presubmit on master.tryserver.chromium.linux (JOB_TIMED_OUT, no build
URL)

[kylechar, 2017-02-21 21:19:32]

The CQ bit was checked by kylechar@chromium.org

[commit-bot: I haz the power, 2017-02-21 21:21:08]

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, 2017-02-21 21:52:00]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1487711972737390,
"parent_rev": "b4da3caa626c8a43cfe73a1f415d1edf58ebb35b", "commit_rev":
"310a283e2982013c42652daa4af5c2ad621a5013"}

[commit-bot: I haz the power, 2017-02-21 21:52:38]

Description was changed from

==========
Remove usage of ws::Display in ws::UserDisplayManager.

For external mode we do not have one ws::Display per display::Display.
Have ws::UserDisplayManager take in a display::Display directly instead
of getting them from ws::Display. Also get list of current displays from
display::Screen instead of ws::DisplayManager.

BUG=693081
==========

to

==========
Remove usage of ws::Display in ws::UserDisplayManager.

For external mode we do not have one ws::Display per display::Display.
Have ws::UserDisplayManager take in a display::Display directly instead
of getting them from ws::Display. Also get list of current displays from
display::Screen instead of ws::DisplayManager.

BUG=693081

Review-Url: https://codereview.chromium.org/2692863009
Cr-Commit-Position: refs/heads/master@{#451841}
Committed:
https://chromium.googlesource.com/chromium/src/+/310a283e2982013c42652daa4af5...
==========

[commit-bot: I haz the power, 2017-02-21 21:52:40]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/chromium/src/+/310a283e2982013c42652daa4af5...