Cleanup leadingWhitespacePosition()

Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style with
expanding |inSameContainingBlockFlowElement()| into it, which is used only
in here.

This patch is a preparation of http://crrev.com/1842753004.

BUG=598665
TEST=n/a; no behavior changes

Committed: https://crrev.com/07acbd0212cb0ae85e4828410648c04e94f3e3e2
Cr-Commit-Position: refs/heads/master@{#384229}

[yosin_UTC9, 2016-03-30 07:20:30]

Description was changed from

==========
2016-03-30T16:03:47

This patch is a preparation of ...

BUG=598665
TEST=n/a
==========

to

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style as a
preparation of http://crrev.com/1842753004

BUG=598665
TEST=n/a
==========

[yosin_UTC9, 2016-03-31 05:57:10]

Description was changed from

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style as a
preparation of http://crrev.com/1842753004

BUG=598665
TEST=n/a
==========

to

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style with
expanding |inSameContainingBlockFlowElement()| into it, which is used only
in here.

This patch is a preparation of http://crrev.com/1842753004.

BUG=598665
TEST=n/a
==========

[yosin_UTC9, 2016-03-31 06:21:00]

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

[yosin_UTC9, 2016-03-31 06:21:01]

PTAL

Bot failures are caused by Goma instead of this patch.

[tkent, 2016-03-31 06:59:39]

lgtm

[yosin_UTC9, 2016-03-31 07:08:24]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2016-03-31 07:09:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1847483002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1847483002/40001

[yosin_UTC9, 2016-03-31 07:14:25]

Description was changed from

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style with
expanding |inSameContainingBlockFlowElement()| into it, which is used only
in here.

This patch is a preparation of http://crrev.com/1842753004.

BUG=598665
TEST=n/a
==========

to

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style with
expanding |inSameContainingBlockFlowElement()| into it, which is used only
in here.

This patch is a preparation of http://crrev.com/1842753004.

BUG=598665
TEST=n/a; no behavior changes
==========

[commit-bot: I haz the power, 2016-03-31 09:25:57]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-03-31 09:27:28]

Description was changed from

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style with
expanding |inSameContainingBlockFlowElement()| into it, which is used only
in here.

This patch is a preparation of http://crrev.com/1842753004.

BUG=598665
TEST=n/a; no behavior changes
==========

to

==========
Cleanup leadingWhitespacePosition()

This patch makes |leadingWhitespacePosition()| in early return style with
expanding |inSameContainingBlockFlowElement()| into it, which is used only
in here.

This patch is a preparation of http://crrev.com/1842753004.

BUG=598665
TEST=n/a; no behavior changes

Committed: https://crrev.com/07acbd0212cb0ae85e4828410648c04e94f3e3e2
Cr-Commit-Position: refs/heads/master@{#384229}
==========

[commit-bot: I haz the power, 2016-03-31 09:27:29]

Patchset 3 (id:??) landed as
https://crrev.com/07acbd0212cb0ae85e4828410648c04e94f3e3e2
Cr-Commit-Position: refs/heads/master@{#384229}