Makes assert_selection() to set focus to sample IFRAME

Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret. Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it and did nothing.

BUG=n/a
TEST=n/a; no behavior changes

Committed: https://crrev.com/8521c4eb8ba14ca34af6826456e7981a3ed0562b
Cr-Commit-Position: refs/heads/master@{#418524}

[yosin_UTC9, 2016-09-14 03:43:34]

Description was changed from

==========
2016-09-14T12:42:22

BUG=
==========

to

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret "abc". Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it.

BUG=n/a
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2016-09-14 03:43:39]

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

[commit-bot: I haz the power, 2016-09-14 03:44:00]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2016-09-14 04:46:50]

Description was changed from

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret "abc". Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it.

BUG=n/a
TEST=n/a; no behavior changes
==========

to

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret. Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it and does nothing.

BUG=n/a
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2016-09-14 04:47:01]

Description was changed from

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret. Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it and does nothing.

BUG=n/a
TEST=n/a; no behavior changes
==========

to

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret. Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it and did nothing.

BUG=n/a
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2016-09-14 04:47:06]

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

[commit-bot: I haz the power, 2016-09-14 04:47:21]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2016-09-14 05:57:11]

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

[commit-bot: I haz the power, 2016-09-14 05:57:28]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2016-09-14 07:11:34]

yosin@chromium.org changed reviewers:
+ xiaochengh@chromium.org, yoichio@chromium.org

[yosin_UTC9, 2016-09-14 07:11:34]

PTAL

[commit-bot: I haz the power, 2016-09-14 07:21:23]

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

[commit-bot: I haz the power, 2016-09-14 07:21:24]

Dry run: This issue passed the CQ dry run.

[Xiaocheng, 2016-09-14 10:20:51]

The CQ bit was checked by xiaochengh@chromium.org

[Xiaocheng, 2016-09-14 10:20:52]

lgtm

[commit-bot: I haz the power, 2016-09-14 10:21:08]

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, 2016-09-14 10:26:04]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-09-14 10:29:18]

Description was changed from

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret. Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it and did nothing.

BUG=n/a
TEST=n/a; no behavior changes
==========

to

==========
Makes assert_selection() to set focus to sample IFRAME

This patch makes |assert_selection()| to set focus to sample IFRAME to ensure
|eventSender| and |testRunner.execCommand()| to work on sample IFRAME rather
than main frame.

The expectation sample of "editing/deleting/delete_by_word.html" is changed to
"Ctrl+Backspace", delete by word, deletes word before caret. Before this
patch, "Ctrl+Backspace" was sent to main frame and sample IFRAME didn't handle
it and did nothing.

BUG=n/a
TEST=n/a; no behavior changes

Committed: https://crrev.com/8521c4eb8ba14ca34af6826456e7981a3ed0562b
Cr-Commit-Position: refs/heads/master@{#418524}
==========

[commit-bot: I haz the power, 2016-09-14 10:29:19]

Patchset 3 (id:??) landed as
https://crrev.com/8521c4eb8ba14ca34af6826456e7981a3ed0562b
Cr-Commit-Position: refs/heads/master@{#418524}