Make TextIterator constructor to take only proper range

Make TextIterator constructor to take only proper range

This patch makes |TextIterator| constructor to take only proper range to
simplify code for improve code health.

Note: This patch is passed all tests, but there are some cases to pass
improper range to |TextIterator|. To catch such case and avoid infinite loop,
we use |CHECK()| to make blink crash.

BUG=727537
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2912053002
Cr-Commit-Position: refs/heads/master@{#475819}
Committed: https://chromium.googlesource.com/chromium/src/+/984f4b2c4df57ae840917a1d79f95a54e68e2c7b

[yosin_UTC9, 2017-05-30 07:51:43]

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

[commit-bot: I haz the power, 2017-05-30 07:51:57]

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, 2017-05-30 09:47:17]

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

[commit-bot: I haz the power, 2017-05-30 09:47:18]

Dry run: This issue passed the CQ dry run.

[yosin_UTC9, 2017-05-31 03:37:26]

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

[commit-bot: I haz the power, 2017-05-31 03:37:46]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2017-05-31 03:55:31]

Description was changed from

==========
2017-05-30T16:49:03

BUG=727537

2017-05-30T16:48:56
==========

to

==========
Make TextIterator constructor to take only proper range

This patch makes |TextIterator| constructor to take only proper range to
simplify code for improve code health.

Note: This patch is passed all tests, but there are some cases to pass
improper range to |TextIterator|. To catch such case and avoid infinite loop,
we use |CHECK()| to make blink crash.

BUG=727537
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2017-05-31 03:57:20]

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

[yosin_UTC9, 2017-05-31 03:57:21]

PTAL

PS#1, fixes bad callers, is already passed all tests.
PS#2 is the latest patch.

[Xiaocheng, 2017-05-31 04:08:10]

lgtm

We can get rid of TI::Initialize after this patch.

[commit-bot: I haz the power, 2017-05-31 05:52:54]

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

[commit-bot: I haz the power, 2017-05-31 05:52:55]

Dry run: This issue passed the CQ dry run.

[yosin_UTC9, 2017-05-31 05:56:20]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2017-05-31 05:56:36]

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, 2017-05-31 06:00:31]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1496210180627670,
"parent_rev": "d657ad8f6d4d27db6ed7cbdd47cfb0127d8ebe4b", "commit_rev":
"984f4b2c4df57ae840917a1d79f95a54e68e2c7b"}

[commit-bot: I haz the power, 2017-05-31 06:00:42]

Description was changed from

==========
Make TextIterator constructor to take only proper range

This patch makes |TextIterator| constructor to take only proper range to
simplify code for improve code health.

Note: This patch is passed all tests, but there are some cases to pass
improper range to |TextIterator|. To catch such case and avoid infinite loop,
we use |CHECK()| to make blink crash.

BUG=727537
TEST=n/a; no behavior changes
==========

to

==========
Make TextIterator constructor to take only proper range

This patch makes |TextIterator| constructor to take only proper range to
simplify code for improve code health.

Note: This patch is passed all tests, but there are some cases to pass
improper range to |TextIterator|. To catch such case and avoid infinite loop,
we use |CHECK()| to make blink crash.

BUG=727537
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2912053002
Cr-Commit-Position: refs/heads/master@{#475819}
Committed:
https://chromium.googlesource.com/chromium/src/+/984f4b2c4df57ae840917a1d79f9...
==========

[commit-bot: I haz the power, 2017-05-31 06:00:43]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/984f4b2c4df57ae840917a1d79f9...