Rewrite editing/inserting/insert-composition-whitespace.html to utilize assert_selection()

Rewrite editing/inserting/insert-composition-whitespace.html to utilize assert_selection()

This patch changes "editing/inserting/insert-composition-whitespace.html" to
utilize |assert_selection()| for ease of maintaining test case. 

This patch is a preparation of the patch[1].

[1] http://crrev.com/c/527421: Fix contentEditable treatment of double spaces

BUG=731756
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2934883004
Cr-Commit-Position: refs/heads/master@{#479316}
Committed: https://chromium.googlesource.com/chromium/src/+/dacd0365e96783bfccbcb9dbc4cff060e15d3fec

[yosin_UTC9, 2017-06-14 04:58:10]

Description was changed from

==========
2017-06-14T13:56:32

BUG=679977

2017-06-14T13:56:20
==========

to

==========
Rewrite editing/inserting/insert-composition-whitespace.html to utilize
assert_selection()

This patch changes "editing/inserting/insert-composition-whitespace.html" to
utilize |assert_selection()| for ease of maintaining test case. 

This patch is a preparation of the patch[1].

[1] http://crrev.com/c/527421: Fix contentEditable treatment of double spaces

BUG=731756
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2017-06-14 04:58:16]

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

[commit-bot: I haz the power, 2017-06-14 04:58:32]

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, 2017-06-14 06:15:10]

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

[commit-bot: I haz the power, 2017-06-14 06:15:12]

Dry run: This issue passed the CQ dry run.

[yosin_UTC9, 2017-06-14 06:27:17]

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

[yosin_UTC9, 2017-06-14 06:27:18]

PTAL

[yoichio, 2017-06-14 07:16:24]

lgtm

[yosin_UTC9, 2017-06-14 07:20:10]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2017-06-14 07:20:25]

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, 2017-06-14 07:25:51]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497424810159620, "parent_rev":
"b52f16be8c5dfc01e33afae295b5ed78c9764262", "commit_rev":
"dacd0365e96783bfccbcb9dbc4cff060e15d3fec"}

[commit-bot: I haz the power, 2017-06-14 07:26:02]

Description was changed from

==========
Rewrite editing/inserting/insert-composition-whitespace.html to utilize
assert_selection()

This patch changes "editing/inserting/insert-composition-whitespace.html" to
utilize |assert_selection()| for ease of maintaining test case. 

This patch is a preparation of the patch[1].

[1] http://crrev.com/c/527421: Fix contentEditable treatment of double spaces

BUG=731756
TEST=n/a; no behavior changes
==========

to

==========
Rewrite editing/inserting/insert-composition-whitespace.html to utilize
assert_selection()

This patch changes "editing/inserting/insert-composition-whitespace.html" to
utilize |assert_selection()| for ease of maintaining test case. 

This patch is a preparation of the patch[1].

[1] http://crrev.com/c/527421: Fix contentEditable treatment of double spaces

BUG=731756
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2934883004
Cr-Commit-Position: refs/heads/master@{#479316}
Committed:
https://chromium.googlesource.com/chromium/src/+/dacd0365e96783bfccbcb9dbc4cf...
==========

[commit-bot: I haz the power, 2017-06-14 07:26:02]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/dacd0365e96783bfccbcb9dbc4cf...