[Layout API] Convert DragCaretController to use Document::layoutViewItem()

[Layout API] Convert DragCaretController to use Document::layoutViewItem()

There was one reference to Document::layoutView() (clearSelection() method)
which is deprecated by the new layout API. I converted it to use
layoutViewItem() instead. No new API methods were required.

There are no functional changes.

BUG=499321
Committed: https://crrev.com/719023f01509d3e566668a8114a51be142ef5568
Cr-Commit-Position: refs/heads/master@{#387857}

[pilgrim_google, 2016-04-15 16:23:39]

pilgrim@chromium.org changed reviewers:
+ eae@chromium.org, jsbell@chromium.org, leviw@chromium.org

[eae, 2016-04-17 18:16:28]

LGTM

[pilgrim_google, 2016-04-18 01:38:40]

The CQ bit was checked by pilgrim@chromium.org

[commit-bot: I haz the power, 2016-04-18 01:38:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1894583002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1894583002/1

[commit-bot: I haz the power, 2016-04-18 04:26:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-18 04:27:07]

Description was changed from

==========
[Layout API] Convert DragCaretController to use Document::layoutViewItem()

There was one reference to Document::layoutView() (clearSelection() method)
which is deprecated by the new layout API. I converted it to use
layoutViewItem() instead. No new API methods were required.

There are no functional changes.

BUG=499321
==========

to

==========
[Layout API] Convert DragCaretController to use Document::layoutViewItem()

There was one reference to Document::layoutView() (clearSelection() method)
which is deprecated by the new layout API. I converted it to use
layoutViewItem() instead. No new API methods were required.

There are no functional changes.

BUG=499321

Committed: https://crrev.com/719023f01509d3e566668a8114a51be142ef5568
Cr-Commit-Position: refs/heads/master@{#387857}
==========

[commit-bot: I haz the power, 2016-04-18 04:27:08]

Patchset 1 (id:??) landed as
https://crrev.com/719023f01509d3e566668a8114a51be142ef5568
Cr-Commit-Position: refs/heads/master@{#387857}