[ios] Removes an unneeded UIWindow from HardwareKeyboardWatcherTest.

[ios] Removes an unneeded UIWindow from HardwareKeyboardWatcherTest.

This test created a UIWindow and set it as the key window, which seemed to
tickle an iOS9 bug that left the application without a key window at all once
the test finished.  This was causing subsequent tests to fail.

The test passes without this UIWindow, so this CL removes it.

BUG=None

Committed: https://crrev.com/72df1e67aea177a06a6cf539b2eeadeb517a4a58
Cr-Commit-Position: refs/heads/master@{#430177}

[rohitrao (ping after 24h), 2016-11-06 00:59:04]

The CQ bit was checked by rohitrao@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-06 00:59:21]

Dry run: 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, 2016-11-06 01:07:04]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-06 01:07:04]

Dry run: This issue passed the CQ dry run.

[gchatz, 2016-11-06 01:07:12]

On 2016/11/06 00:59:21, commit-bot: I haz the power wrote:
> Dry run: CQ is trying da patch. Follow status at
>  
>
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

lgtm

[rohitrao (ping after 24h), 2016-11-06 01:08:13]

The CQ bit was checked by rohitrao@chromium.org

[commit-bot: I haz the power, 2016-11-06 01:08:24]

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, 2016-11-06 03:48:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-06 03:53:26]

Description was changed from

==========
[ios] Removes an unneeded UIWindow from HardwareKeyboardWatcherTest.

This test created a UIWindow and set it as the key window, which seemed to
tickle an iOS9 bug that left the application without a key window at all once
the test finished.  This was causing subsequent tests to fail.

The test passes without this UIWindow, so this CL removes it.

BUG=None
==========

to

==========
[ios] Removes an unneeded UIWindow from HardwareKeyboardWatcherTest.

This test created a UIWindow and set it as the key window, which seemed to
tickle an iOS9 bug that left the application without a key window at all once
the test finished.  This was causing subsequent tests to fail.

The test passes without this UIWindow, so this CL removes it.

BUG=None

Committed: https://crrev.com/72df1e67aea177a06a6cf539b2eeadeb517a4a58
Cr-Commit-Position: refs/heads/master@{#430177}
==========

[commit-bot: I haz the power, 2016-11-06 03:53:27]

Patchset 1 (id:??) landed as
https://crrev.com/72df1e67aea177a06a6cf539b2eeadeb517a4a58
Cr-Commit-Position: refs/heads/master@{#430177}