Close the panel if show has been requested

Close the panel if show has been requested

When a panel is requested to show, it may not be visible yet and
isShowing will return false. If two panels try to show simultaneously
this can cause the incorrect panel to appear. This change keeps track
of whether peek has been called so there can be a corresponding close
call, regardless of panel visibility.

BUG=623017
Committed: https://crrev.com/967e335bb9ad405a0e13d7827d3cc1875d819914
Cr-Commit-Position: refs/heads/master@{#402218}

[mdjones, 2016-06-24 19:02:40]

mdjones@chromium.org changed reviewers:
+ twellington@chromium.org

[mdjones, 2016-06-24 19:02:41]

ptal

[Theresa, 2016-06-24 23:46:02]

lgtm

[mdjones, 2016-06-27 16:52:44]

The CQ bit was checked by mdjones@chromium.org

[commit-bot: I haz the power, 2016-06-27 16:53:11]

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, 2016-06-27 17:41:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-27 17:44:04]

Description was changed from

==========
Close the panel if show has been requested

When a panel is requested to show, it may not be visible yet and
isShowing will return false. If two panels try to show simultaneously
this can cause the incorrect panel to appear. This change keeps track
of whether peek has been called so there can be a corresponding close
call, regardless of panel visibility.

BUG=623017
==========

to

==========
Close the panel if show has been requested

When a panel is requested to show, it may not be visible yet and
isShowing will return false. If two panels try to show simultaneously
this can cause the incorrect panel to appear. This change keeps track
of whether peek has been called so there can be a corresponding close
call, regardless of panel visibility.

BUG=623017

Committed: https://crrev.com/967e335bb9ad405a0e13d7827d3cc1875d819914
Cr-Commit-Position: refs/heads/master@{#402218}
==========

[commit-bot: I haz the power, 2016-06-27 17:44:05]

Patchset 1 (id:??) landed as
https://crrev.com/967e335bb9ad405a0e13d7827d3cc1875d819914
Cr-Commit-Position: refs/heads/master@{#402218}

[mdjones, 2016-06-28 20:57:40]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2108863003/ by mdjones@chromium.org.

The reason for reverting is: This patch does not entirely fix the issue since a
panel can be opened by the panel manager without being requested..