arc: Show icon for the task created in background.

arc: Show icon for the task created in background.

There is support for Arc tasks which don't have window on creation
time.

BUG=b/31780038
BUG=651225
TEST=Manually on device. Various cases with deferred launch, pinned
     non-pinned apps, switch to secondary user profile and back.
     In all cases we have shelf icon for apps, even if another Arc
     app is active in full screen. In case of switching to the
     secondary profile, there is no Arc icons, including those,
     which don't have window attached.

Committed: https://crrev.com/4f5fe26dc3419d1fc7bc691e433d42eef7b1f8ce
Cr-Commit-Position: refs/heads/master@{#421833}

[khmel, 2016-09-28 22:48:49]

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

[khmel, 2016-09-28 22:48:50]

Hi Stefan,

PTAL

[Mr4D (OOO till 08-26), 2016-09-29 03:16:35]

lgtm. Somehow I still wonder if we haven't forgotten something. I get the
feeling that there are some background services, etc. which might make this feel
odd.

[khmel, 2016-09-29 15:30:01]

The CQ bit was checked by khmel@chromium.org

[commit-bot: I haz the power, 2016-09-29 15:30:12]

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, 2016-09-29 16:03:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-29 16:05:58]

Description was changed from

==========
arc: Show icon for the task created in background.

There is support for Arc tasks which don't have window on creation
time.

BUG=b/31780038
BUG=651225
TEST=Manually on device. Various cases with deferred launch, pinned
     non-pinned apps, switch to secondary user profile and back.
     In all cases we have shelf icon for apps, even if another Arc
     app is active in full screen. In case of switching to the
     secondary profile, there is no Arc icons, including those,
     which don't have window attached.
==========

to

==========
arc: Show icon for the task created in background.

There is support for Arc tasks which don't have window on creation
time.

BUG=b/31780038
BUG=651225
TEST=Manually on device. Various cases with deferred launch, pinned
     non-pinned apps, switch to secondary user profile and back.
     In all cases we have shelf icon for apps, even if another Arc
     app is active in full screen. In case of switching to the
     secondary profile, there is no Arc icons, including those,
     which don't have window attached.

Committed: https://crrev.com/4f5fe26dc3419d1fc7bc691e433d42eef7b1f8ce
Cr-Commit-Position: refs/heads/master@{#421833}
==========

[commit-bot: I haz the power, 2016-09-29 16:06:00]

Patchset 1 (id:??) landed as
https://crrev.com/4f5fe26dc3419d1fc7bc691e433d42eef7b1f8ce
Cr-Commit-Position: refs/heads/master@{#421833}