Add smooth interpolation support for <length> custom properties

Add smooth interpolation support for <length> custom properties

This change enables smooth interpolation for animations on
custom properties registered as <length>.

This does not add support for CSS Transitions, only CSS
Animations and Web Animations.

BUG=671904
Review-Url: https://codereview.chromium.org/2658333003
Cr-Commit-Position: refs/heads/master@{#447574}
Committed: https://chromium.googlesource.com/chromium/src/+/9713b4c9d2c1234bfef097f5af3ebc690be43552

[alancutter (OOO until 2018), 2017-01-28 09:11:27]

alancutter@chromium.org changed reviewers:
+ ericwilligers@chromium.org, sashab@chromium.org

[alancutter (OOO until 2018), 2017-01-28 09:11:27]

ericwilligers for core/animation.
sashab for core/css.

[sashab, 2017-01-31 19:56:16]

core/css LGTM.

[Eric Willigers, 2017-02-01 02:52:26]

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

[Eric Willigers, 2017-02-01 02:52:30]

lgtm

[commit-bot: I haz the power, 2017-02-01 02:52:41]

Dry run: 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, 2017-02-01 03:01:28]

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

[commit-bot: I haz the power, 2017-02-01 03:01:29]

Dry run: Try jobs failed on following builders:
  linux_chromium_asan_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_chromeos_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[alancutter (OOO until 2018), 2017-02-01 17:48:05]

The CQ bit was checked by alancutter@chromium.org

[commit-bot: I haz the power, 2017-02-01 17:48:24]

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, 2017-02-01 19:22:41]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485971285637410, "parent_rev":
"edd75535768b2d5f96c74f5de205d282d7eea8d4", "commit_rev":
"9713b4c9d2c1234bfef097f5af3ebc690be43552"}

[commit-bot: I haz the power, 2017-02-01 19:23:14]

Description was changed from

==========
Add smooth interpolation support for <length> custom properties

This change enables smooth interpolation for animations on
custom properties registered as <length>.

This does not add support for CSS Transitions, only CSS
Animations and Web Animations.

BUG=671904
==========

to

==========
Add smooth interpolation support for <length> custom properties

This change enables smooth interpolation for animations on
custom properties registered as <length>.

This does not add support for CSS Transitions, only CSS
Animations and Web Animations.

BUG=671904

Review-Url: https://codereview.chromium.org/2658333003
Cr-Commit-Position: refs/heads/master@{#447574}
Committed:
https://chromium.googlesource.com/chromium/src/+/9713b4c9d2c1234bfef097f5af3e...
==========

[commit-bot: I haz the power, 2017-02-01 19:23:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/9713b4c9d2c1234bfef097f5af3e...