Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

This patch moves |LeftWordPosition()|, |RightWordPosition()| with related
functions to "SelectionModifierWord.cpp" as a preparation of making
|{Left,Right}WordPosition()| as file local function since these functions
are used only in |SelectionModifier| class for improving code health.

This patch also makes moved code C++11'ish, |0| to |nullptr|, adding |final|,
etc.

BUG=707656
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2908083002
Cr-Commit-Position: refs/heads/master@{#475428}
Committed: https://chromium.googlesource.com/chromium/src/+/98c9b996ae68f0973d595b094fc0d2dbefc886a3

[yosin_UTC9, 2017-05-29 07:48:38]

Description was changed from

==========
2017-05-29T16:46:55

BUG=

2017-05-29T16:46:04
==========

to

==========
Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

BUG=707656
==========

[yosin_UTC9, 2017-05-29 07:48:43]

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

[commit-bot: I haz the power, 2017-05-29 07:48:57]

Dry run: CQ is trying da patch.

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

[yosin_UTC9, 2017-05-29 07:52:36]

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

[commit-bot: I haz the power, 2017-05-29 07:52:48]

Dry run: CQ is trying da patch.

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

[yosin_UTC9, 2017-05-29 09:43:00]

Description was changed from

==========
Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

BUG=707656
==========

to

==========
Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

This patch moves |LeftWordPosition()|, |RightWordPosition()| with related
functions to "SelectionModifierWord.cpp" as a preparation of making
|{Left,Right}WordPosition()| as file local function since these functions
are used only in |SelectionModifier| class for improving code health.

This patch also makes moved code C++11'ish, |0| to |nullptr|, adding |final|,
etc.

BUG=707656
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2017-05-29 09:44:08]

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

[yosin_UTC9, 2017-05-29 09:44:09]

PTAL

[commit-bot: I haz the power, 2017-05-29 10:05:44]

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

[commit-bot: I haz the power, 2017-05-29 10:05:45]

Dry run: This issue passed the CQ dry run.

[yoichio, 2017-05-30 04:45:52]

lgtm

[yosin_UTC9, 2017-05-30 05:04:21]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2017-05-30 05:04:49]

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 05:08:56]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1496120661009720,
"parent_rev": "4338293c9ae5e006be914498e11b1d4032b1f60b", "commit_rev":
"98c9b996ae68f0973d595b094fc0d2dbefc886a3"}

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

Description was changed from

==========
Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

This patch moves |LeftWordPosition()|, |RightWordPosition()| with related
functions to "SelectionModifierWord.cpp" as a preparation of making
|{Left,Right}WordPosition()| as file local function since these functions
are used only in |SelectionModifier| class for improving code health.

This patch also makes moved code C++11'ish, |0| to |nullptr|, adding |final|,
etc.

BUG=707656
TEST=n/a; no behavior changes
==========

to

==========
Move LeftWordPosition/RightWordPosition() to SelectionModifierWord.cpp

This patch moves |LeftWordPosition()|, |RightWordPosition()| with related
functions to "SelectionModifierWord.cpp" as a preparation of making
|{Left,Right}WordPosition()| as file local function since these functions
are used only in |SelectionModifier| class for improving code health.

This patch also makes moved code C++11'ish, |0| to |nullptr|, adding |final|,
etc.

BUG=707656
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2908083002
Cr-Commit-Position: refs/heads/master@{#475428}
Committed:
https://chromium.googlesource.com/chromium/src/+/98c9b996ae68f0973d595b094fc0...
==========

[commit-bot: I haz the power, 2017-05-30 05:09:06]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/98c9b996ae68f0973d595b094fc0...