DCHECK for a valid error callback callback in GetIsPinnedToTaskbarState

DCHECK for a valid error callback in GetIsPinnedToTaskbarState

Fixes a crash that could happens when closing the Win10 welcome page while
the utility process is running.

BUG=

Committed: https://crrev.com/83edc1eaf8af9d1e069fbf9551d809b29aaf85cf
Cr-Commit-Position: refs/heads/master@{#438864}

[Patrick Monette, 2016-12-14 23:12:58]

Description was changed from

==========
DCHECK for a valid error callback callback in GetIsPinnedToTaskbarState

BUG=
==========

to

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

BUG=
==========

[Patrick Monette, 2016-12-14 23:15:35]

Description was changed from

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

BUG=
==========

to

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

Fixes a crash that could happens when closing the Win10 welcome page while
the utility process is running.

BUG=
==========

[Patrick Monette, 2016-12-14 23:16:17]

pmonette@chromium.org changed reviewers:
+ grt@chromium.org, michaelpg@chromium.org

[Patrick Monette, 2016-12-14 23:16:18]

grt@ PTAL at shell_integration_win
michaelpg@ PTAL at cr/b/ui

Thanks!

[michaelpg, 2016-12-15 01:51:06]

lgtm

[grt (UTC plus 2), 2016-12-15 09:11:54]

lgtm

[Patrick Monette, 2016-12-15 16:45:45]

The CQ bit was checked by pmonette@chromium.org

[commit-bot: I haz the power, 2016-12-15 16:46:03]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Patrick Monette, 2016-12-15 16:50:52]

Thanks!

[commit-bot: I haz the power, 2016-12-15 17:36:47]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481820345541920, "parent_rev":
"2901f97f345160dc646ac683a3ed91b3b7010860", "commit_rev":
"f2a79974f17d8f1b4552de9d8f5a67e36da309bd"}

[commit-bot: I haz the power, 2016-12-15 17:37:17]

Description was changed from

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

Fixes a crash that could happens when closing the Win10 welcome page while
the utility process is running.

BUG=
==========

to

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

Fixes a crash that could happens when closing the Win10 welcome page while
the utility process is running.

BUG=

Review-Url: https://codereview.chromium.org/2581473002
==========

[commit-bot: I haz the power, 2016-12-15 17:37:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-15 17:38:56]

Description was changed from

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

Fixes a crash that could happens when closing the Win10 welcome page while
the utility process is running.

BUG=

Review-Url: https://codereview.chromium.org/2581473002
==========

to

==========
DCHECK for a valid error callback in GetIsPinnedToTaskbarState

Fixes a crash that could happens when closing the Win10 welcome page while
the utility process is running.

BUG=

Committed: https://crrev.com/83edc1eaf8af9d1e069fbf9551d809b29aaf85cf
Cr-Commit-Position: refs/heads/master@{#438864}
==========

[commit-bot: I haz the power, 2016-12-15 17:38:57]

Patchset 1 (id:??) landed as
https://crrev.com/83edc1eaf8af9d1e069fbf9551d809b29aaf85cf
Cr-Commit-Position: refs/heads/master@{#438864}