[Merge M58] Fix crash whem window created before shelf creation.

[Merge M58] Fix crash whem window created before shelf creation.

This fix crash due race condition in multi-profile mode in case some
window is created before shelf initialized. Easiest way to repo is
on fresh machine first sign-in to public account, sign-out, sign-in
to corp Google account. ARC++ OptIn window should pop-up on start.


NOTRY=true
NOPRESUBMIT=true
TBR=skuhne@chromium.org

BUG=684860
TEST=Manually, no more crashes.

Review-Url: https://codereview.chromium.org/2736993002
Cr-Commit-Position: refs/heads/master@{#455315}
(cherry picked from commit a89719254bb2ba3420b3eefb14b811f711532f99)

Review-Url: https://codereview.chromium.org/2738773003
Cr-Commit-Position: refs/branch-heads/3029@{#55}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/eb7089ad459643fd6e0c2b1def42fbb8e1c50284

[khmel, 2017-03-08 01:00:47]

Description was changed from

==========
[Merge M58] Fix crash whem window created before shelf creation.

This fix crash due race condition in multi-profile mode in case some
window is created before shelf initialized. Easiest way to repo is
on fresh machine first sign-in to public account, sign-out, sign-in
to corp Google account. ARC++ OptIn window should pop-up on start.


NOTRY=true
NOPRESUBMIT=true
TBR=skuhne@chromium.org

BUG=684860
TEST=Manually, no more crashes.

Review-Url: https://codereview.chromium.org/2736993002
Cr-Commit-Position: refs/heads/master@{#455315}
(cherry picked from commit a89719254bb2ba3420b3eefb14b811f711532f99)
==========

to

==========
[Merge M58] Fix crash whem window created before shelf creation.

This fix crash due race condition in multi-profile mode in case some
window is created before shelf initialized. Easiest way to repo is
on fresh machine first sign-in to public account, sign-out, sign-in
to corp Google account. ARC++ OptIn window should pop-up on start.


NOTRY=true
NOPRESUBMIT=true
TBR=skuhne@chromium.org

BUG=684860
TEST=Manually, no more crashes.

Review-Url: https://codereview.chromium.org/2736993002
Cr-Commit-Position: refs/heads/master@{#455315}
(cherry picked from commit a89719254bb2ba3420b3eefb14b811f711532f99)
==========

[khmel, 2017-03-08 01:00:47]

khmel@chromium.org changed reviewers:
- skuhne@chromium.org

[khmel, 2017-03-08 01:17:03]

The CQ bit was checked by khmel@chromium.org

[commit-bot: I haz the power, 2017-03-08 01:18:16]

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, 2017-03-08 01:20:45]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488935823054870, "parent_rev":
"a5f2e639502213fa0f3f0afaa88c85eab7027111", "commit_rev":
"eb7089ad459643fd6e0c2b1def42fbb8e1c50284"}

[commit-bot: I haz the power, 2017-03-08 01:22:13]

Description was changed from

==========
[Merge M58] Fix crash whem window created before shelf creation.

This fix crash due race condition in multi-profile mode in case some
window is created before shelf initialized. Easiest way to repo is
on fresh machine first sign-in to public account, sign-out, sign-in
to corp Google account. ARC++ OptIn window should pop-up on start.


NOTRY=true
NOPRESUBMIT=true
TBR=skuhne@chromium.org

BUG=684860
TEST=Manually, no more crashes.

Review-Url: https://codereview.chromium.org/2736993002
Cr-Commit-Position: refs/heads/master@{#455315}
(cherry picked from commit a89719254bb2ba3420b3eefb14b811f711532f99)
==========

to

==========
[Merge M58] Fix crash whem window created before shelf creation.

This fix crash due race condition in multi-profile mode in case some
window is created before shelf initialized. Easiest way to repo is
on fresh machine first sign-in to public account, sign-out, sign-in
to corp Google account. ARC++ OptIn window should pop-up on start.


NOTRY=true
NOPRESUBMIT=true
TBR=skuhne@chromium.org

BUG=684860
TEST=Manually, no more crashes.

Review-Url: https://codereview.chromium.org/2736993002
Cr-Commit-Position: refs/heads/master@{#455315}
(cherry picked from commit a89719254bb2ba3420b3eefb14b811f711532f99)

Review-Url: https://codereview.chromium.org/2738773003
Cr-Commit-Position: refs/branch-heads/3029@{#55}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/eb7089ad459643fd6e0c2b1def42...
==========

[commit-bot: I haz the power, 2017-03-08 01:22:13]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/eb7089ad459643fd6e0c2b1def42...