Make enclosingBlockFlowElement() to take const Node reference

Make enclosingBlockFlowElement() to take const Node reference

This patch makes |enclosingBlockFlowElement()| to take |const Node&| instead
of |Node&| for improve code health.

This patch is a preparation of http://crrev.com/1847483002, clean up
|leadingWhitespacePosition()|.

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

Committed: https://crrev.com/a5aaee4ce3189ef28d9557707e7971b87dea3e35
Cr-Commit-Position: refs/heads/master@{#383938}

[yosin_UTC9, 2016-03-30 08:15:29]

Description was changed from

==========
Make enclosingBlockFlowElement() to take const Node reference


BUG=n/a
==========

to

==========
Make enclosingBlockFlowElement() to take const Node reference

This patch makes |enclosingBlockFlowElement()| to take |const Node&| instead
of |Node&| for improve code health.

This patch is a preparation of http://crrev.com/1847483002, clean up
|leadingWhitespacePosition()|.

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

[yosin_UTC9, 2016-03-30 08:15:29]

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

[yosin_UTC9, 2016-03-30 08:15:39]

PTAL

[tkent, 2016-03-30 08:20:33]

lgtm

[yosin_UTC9, 2016-03-30 08:21:38]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2016-03-30 08:21:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1845563002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1845563002/1

[commit-bot: I haz the power, 2016-03-30 09:24:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-30 09:26:05]

Description was changed from

==========
Make enclosingBlockFlowElement() to take const Node reference

This patch makes |enclosingBlockFlowElement()| to take |const Node&| instead
of |Node&| for improve code health.

This patch is a preparation of http://crrev.com/1847483002, clean up
|leadingWhitespacePosition()|.

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

to

==========
Make enclosingBlockFlowElement() to take const Node reference

This patch makes |enclosingBlockFlowElement()| to take |const Node&| instead
of |Node&| for improve code health.

This patch is a preparation of http://crrev.com/1847483002, clean up
|leadingWhitespacePosition()|.

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

Committed: https://crrev.com/a5aaee4ce3189ef28d9557707e7971b87dea3e35
Cr-Commit-Position: refs/heads/master@{#383938}
==========

[commit-bot: I haz the power, 2016-03-30 09:26:06]

Patchset 1 (id:??) landed as
https://crrev.com/a5aaee4ce3189ef28d9557707e7971b87dea3e35
Cr-Commit-Position: refs/heads/master@{#383938}