Fix a wrong test landed in r400392.

Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because every OPTION is
selected after removeChild().

This CL makes select-single-remove.html very slower.

BUG=620142
TBR=keishi@chromium.org

Committed: https://crrev.com/49796c5e364e736e2ae3b8a12660b136b1135c9f
Cr-Commit-Position: refs/heads/master@{#400639}

[tkent, 2016-06-20 07:56:50]

Description was changed from

==========
Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because removing OPTIONs one
by one selects the first remaining OPTION.

BUG=620142
TBR=keishi@chromium.org
==========

to

==========
Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because every OPTION is
selected after removeChild().

BUG=620142
TBR=keishi@chromium.org
==========

[tkent, 2016-06-20 07:57:18]

Description was changed from

==========
Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because every OPTION is
selected after removeChild().

BUG=620142
TBR=keishi@chromium.org
==========

to

==========
Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because every OPTION is
selected after removeChild().

This CL makes select-single-remove.html very slower.

BUG=620142
TBR=keishi@chromium.org
==========

[tkent, 2016-06-20 07:57:35]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2016-06-20 07:57:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2079233002/1

[commit-bot: I haz the power, 2016-06-20 09:09:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-20 09:14:05]

Description was changed from

==========
Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because every OPTION is
selected after removeChild().

This CL makes select-single-remove.html very slower.

BUG=620142
TBR=keishi@chromium.org
==========

to

==========
Fix a wrong test landed in r400392.

We need to clear |selected| state on every test run because every OPTION is
selected after removeChild().

This CL makes select-single-remove.html very slower.

BUG=620142
TBR=keishi@chromium.org

Committed: https://crrev.com/49796c5e364e736e2ae3b8a12660b136b1135c9f
Cr-Commit-Position: refs/heads/master@{#400639}
==========

[commit-bot: I haz the power, 2016-06-20 09:14:05]

Patchset 1 (id:??) landed as
https://crrev.com/49796c5e364e736e2ae3b8a12660b136b1135c9f
Cr-Commit-Position: refs/heads/master@{#400639}