Revert of cros: Fix keyboard navigation focus get lost when system tray set to invisible on oobe

Revert of cros: Fix keyboard navigation focus get lost when system tray set to invisible on oobe (patchset #1 id:1 of https://codereview.chromium.org/2794153002/ )

Reason for revert:
AutofillInteractiveTest.AutofillAfterReload became flaky right after
this landed. The test involves focus (FocusFirstNameField()) and the
change also involves focus, so there is likely a connection.

BUG=708861
Original issue's description:
> cros: Fix keyboard navigation focus get lost when system tray set to invisible on oobe
> 
> Changes:
> (1) add tray->visible() check in WebUILoginView::TakeFocus().
> (2) add else branch to avoid an invisible focus stop.
> 
> BUG=707977
> TEST=test that focus loop works
> 
> Review-Url: https://codereview.chromium.org/2794153002
> Cr-Commit-Position: refs/heads/master@{#461741}
> Committed: https://chromium.googlesource.com/chromium/src/+/43c00b6dfca02767efa66d7fb110c7cbf28bc019

TBR=xiyuan@chromium.org,warx@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=707977
Review-Url: https://codereview.chromium.org/2801853003
Cr-Commit-Position: refs/heads/master@{#462355}
Committed: https://chromium.googlesource.com/chromium/src/+/53436789712c58d9f7d512e6615b4acf46e52f28

[foolip, 2017-04-06 03:58:02]

The CQ bit was checked by foolip@chromium.org

[foolip, 2017-04-06 03:58:02]

Created Revert of cros: Fix keyboard navigation focus get lost when system tray
set to invisible on oobe

[commit-bot: I haz the power, 2017-04-06 03:58:18]

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, 2017-04-06 04:28:18]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491451082510940, "parent_rev":
"32e73e4273c57c61ad4dddedbcbbb52b820ad534", "commit_rev":
"53436789712c58d9f7d512e6615b4acf46e52f28"}

[commit-bot: I haz the power, 2017-04-06 04:29:10]

Description was changed from

==========
Revert of cros: Fix keyboard navigation focus get lost when system tray set to
invisible on oobe (patchset #1 id:1 of
https://codereview.chromium.org/2794153002/ )

Reason for revert:
AutofillInteractiveTest.AutofillAfterReload became flaky right after
this landed. The test involves focus (FocusFirstNameField()) and the
change also involves focus, so there is likely a connection.

BUG=708861

Original issue's description:
> cros: Fix keyboard navigation focus get lost when system tray set to invisible
on oobe
> 
> Changes:
> (1) add tray->visible() check in WebUILoginView::TakeFocus().
> (2) add else branch to avoid an invisible focus stop.
> 
> BUG=707977
> TEST=test that focus loop works
> 
> Review-Url: https://codereview.chromium.org/2794153002
> Cr-Commit-Position: refs/heads/master@{#461741}
> Committed:
https://chromium.googlesource.com/chromium/src/+/43c00b6dfca02767efa66d7fb110...

TBR=xiyuan@chromium.org,warx@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=707977
==========

to

==========
Revert of cros: Fix keyboard navigation focus get lost when system tray set to
invisible on oobe (patchset #1 id:1 of
https://codereview.chromium.org/2794153002/ )

Reason for revert:
AutofillInteractiveTest.AutofillAfterReload became flaky right after
this landed. The test involves focus (FocusFirstNameField()) and the
change also involves focus, so there is likely a connection.

BUG=708861

Original issue's description:
> cros: Fix keyboard navigation focus get lost when system tray set to invisible
on oobe
> 
> Changes:
> (1) add tray->visible() check in WebUILoginView::TakeFocus().
> (2) add else branch to avoid an invisible focus stop.
> 
> BUG=707977
> TEST=test that focus loop works
> 
> Review-Url: https://codereview.chromium.org/2794153002
> Cr-Commit-Position: refs/heads/master@{#461741}
> Committed:
https://chromium.googlesource.com/chromium/src/+/43c00b6dfca02767efa66d7fb110...

TBR=xiyuan@chromium.org,warx@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=707977

Review-Url: https://codereview.chromium.org/2801853003
Cr-Commit-Position: refs/heads/master@{#462355}
Committed:
https://chromium.googlesource.com/chromium/src/+/53436789712c58d9f7d512e6615b...
==========

[commit-bot: I haz the power, 2017-04-06 04:29:11]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/53436789712c58d9f7d512e6615b...