Port CSS visibility animations to CSSInterpolationTypes

Port CSS visibility animations to CSSInterpolationTypes

This change refactors CSS visibility animations to use CSSInterpolationType.
There is no difference in behaviour in this patch.

BUG=530436
Committed: https://crrev.com/fb1422557db007628645794f066fae877ad558ca
Cr-Commit-Position: refs/heads/master@{#368546}

[alancutter (OOO until 2018), 2015-12-23 08:31:56]

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

[alancutter (OOO until 2018), 2015-12-23 08:32:02]

alancutter@chromium.org changed reviewers:
+ dstockwell@chromium.org

[commit-bot: I haz the power, 2015-12-23 08:32:22]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1548873002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1548873002/1

[commit-bot: I haz the power, 2015-12-23 09:53:26]

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

[commit-bot: I haz the power, 2015-12-23 09:53:26]

Dry run: This issue passed the CQ dry run.

[dstockwell, 2016-01-03 22:12:24]

lgtm

The special case of interpolation happening in the NIV warrants some comments.

[alancutter (OOO until 2018), 2016-01-11 03:53:30]

The CQ bit was checked by alancutter@chromium.org

[alancutter (OOO until 2018), 2016-01-11 03:53:31]

The patchset sent to the CQ was uploaded after l-g-t-m from
dstockwell@chromium.org
Link to the patchset: https://codereview.chromium.org/1548873002/#ps20001
(title: "Added deferred interpolation comment")

[commit-bot: I haz the power, 2016-01-11 03:53:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1548873002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1548873002/20001

[commit-bot: I haz the power, 2016-01-11 09:13:50]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-01-11 09:16:10]

Description was changed from

==========
Port CSS visibility animations to CSSInterpolationTypes

This change refactors CSS visibility animations to use CSSInterpolationType.
There is no difference in behaviour in this patch.

BUG=530436
==========

to

==========
Port CSS visibility animations to CSSInterpolationTypes

This change refactors CSS visibility animations to use CSSInterpolationType.
There is no difference in behaviour in this patch.

BUG=530436

Committed: https://crrev.com/fb1422557db007628645794f066fae877ad558ca
Cr-Commit-Position: refs/heads/master@{#368546}
==========

[commit-bot: I haz the power, 2016-01-11 09:16:11]

Patchset 2 (id:??) landed as
https://crrev.com/fb1422557db007628645794f066fae877ad558ca
Cr-Commit-Position: refs/heads/master@{#368546}