Revert of Add smooth interpolation support for <color> custom properties

Revert of Add smooth interpolation support for <color> custom properties (patchset #5 id:80001 of https://codereview.chromium.org/2564793002/ )

Reason for revert:
Added test is seen failing on the bots, e.g.,

 https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Trusty/builds/22494
 https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11/builds/15502


Original issue's description:
> Add smooth interpolation support for <color> custom properties
> 
> This change enables smooth interpolation for animations on
> custom properties registered as <color>.
> 
> This does not add support for CSS Transitions, only CSS
> Animations and Web Animations.
> This does not add support for currentcolor for CSS Animations,
> supporting this may require further redesigns to style resolution.
> 
> BUG=671904
> 
> Review-Url: https://codereview.chromium.org/2564793002
> Cr-Commit-Position: refs/heads/master@{#445967}
> Committed: https://chromium.googlesource.com/chromium/src/+/96bee2c42c8df73523e971850215d29d1c40c15f

TBR=sashab@chromium.org,alancutter@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=671904
Review-Url: https://codereview.chromium.org/2649103008
Cr-Commit-Position: refs/heads/master@{#445994}
Committed: https://chromium.googlesource.com/chromium/src/+/14ab21ed2e07a78a0b4af6b8a09ff5de06b6d33d

[sof, 2017-01-25 10:46:00]

The CQ bit was checked by sigbjornf@opera.com

[sof, 2017-01-25 10:46:00]

Created Revert of Add smooth interpolation support for <color> custom properties

[commit-bot: I haz the power, 2017-01-25 10:46:17]

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, 2017-01-25 10:46:55]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485341160370780, "parent_rev":
"66ac8d1a05c988aa07a1da9e1613c83ccdc304ad", "commit_rev":
"14ab21ed2e07a78a0b4af6b8a09ff5de06b6d33d"}

[commit-bot: I haz the power, 2017-01-25 10:47:25]

Description was changed from

==========
Revert of Add smooth interpolation support for <color> custom properties
(patchset #5 id:80001 of https://codereview.chromium.org/2564793002/ )

Reason for revert:
Added test is seen failing on the bots, e.g.,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Trusty...

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11/build...


Original issue's description:
> Add smooth interpolation support for <color> custom properties
> 
> This change enables smooth interpolation for animations on
> custom properties registered as <color>.
> 
> This does not add support for CSS Transitions, only CSS
> Animations and Web Animations.
> This does not add support for currentcolor for CSS Animations,
> supporting this may require further redesigns to style resolution.
> 
> BUG=671904
> 
> Review-Url: https://codereview.chromium.org/2564793002
> Cr-Commit-Position: refs/heads/master@{#445967}
> Committed:
https://chromium.googlesource.com/chromium/src/+/96bee2c42c8df73523e971850215...

TBR=sashab@chromium.org,alancutter@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=671904
==========

to

==========
Revert of Add smooth interpolation support for <color> custom properties
(patchset #5 id:80001 of https://codereview.chromium.org/2564793002/ )

Reason for revert:
Added test is seen failing on the bots, e.g.,


https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Trusty...

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11/build...


Original issue's description:
> Add smooth interpolation support for <color> custom properties
> 
> This change enables smooth interpolation for animations on
> custom properties registered as <color>.
> 
> This does not add support for CSS Transitions, only CSS
> Animations and Web Animations.
> This does not add support for currentcolor for CSS Animations,
> supporting this may require further redesigns to style resolution.
> 
> BUG=671904
> 
> Review-Url: https://codereview.chromium.org/2564793002
> Cr-Commit-Position: refs/heads/master@{#445967}
> Committed:
https://chromium.googlesource.com/chromium/src/+/96bee2c42c8df73523e971850215...

TBR=sashab@chromium.org,alancutter@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=671904

Review-Url: https://codereview.chromium.org/2649103008
Cr-Commit-Position: refs/heads/master@{#445994}
Committed:
https://chromium.googlesource.com/chromium/src/+/14ab21ed2e07a78a0b4af6b8a09f...
==========

[commit-bot: I haz the power, 2017-01-25 10:47:25]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/14ab21ed2e07a78a0b4af6b8a09f...