Introduce DragController::hasCaretIn()

Introduce DragController::hasCaretIn()

This patch introduces |DragController::hasCaretIn()| as replacement of
|DragController::caretLayoutObject()| and |DragController::isContentEditable()|
to provide high-level API for improving code health.

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

Committed: https://crrev.com/9f661daee719dff656ba327e07805f0101af0165
Cr-Commit-Position: refs/heads/master@{#414381}

[yosin_UTC9, 2016-08-25 07:00:41]

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

[commit-bot: I haz the power, 2016-08-25 07:01:08]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2016-08-25 07:51:00]

Description was changed from

==========
2016-08-25T15:59:17

BUG=
==========

to

==========
Introduce DragController::hasCaretIn()

This patch introduces |DragController::hasCaretIn()| as replacement of
|DragController::caretLayoutObject()| and |DragController::isContentEditable()|
to provide high-level API for improving code health.

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

[yosin_UTC9, 2016-08-25 07:51:00]

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

[yosin_UTC9, 2016-08-25 07:51:23]

PTAL

[tkent, 2016-08-25 07:55:21]

lgtm

[yosin_UTC9, 2016-08-25 07:59:15]

The CQ bit was unchecked by yosin@chromium.org

[yosin_UTC9, 2016-08-25 07:59:16]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2016-08-25 07:59:29]

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, 2016-08-25 10:24:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-25 10:26:35]

Description was changed from

==========
Introduce DragController::hasCaretIn()

This patch introduces |DragController::hasCaretIn()| as replacement of
|DragController::caretLayoutObject()| and |DragController::isContentEditable()|
to provide high-level API for improving code health.

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

to

==========
Introduce DragController::hasCaretIn()

This patch introduces |DragController::hasCaretIn()| as replacement of
|DragController::caretLayoutObject()| and |DragController::isContentEditable()|
to provide high-level API for improving code health.

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

Committed: https://crrev.com/9f661daee719dff656ba327e07805f0101af0165
Cr-Commit-Position: refs/heads/master@{#414381}
==========

[commit-bot: I haz the power, 2016-08-25 10:26:36]

Patchset 1 (id:??) landed as
https://crrev.com/9f661daee719dff656ba327e07805f0101af0165
Cr-Commit-Position: refs/heads/master@{#414381}