merge_commit_3c5c83759bb5062de405b1c29257f89e884759fb

"CSS Animations: WPTs for responsive animations"
"column-rule-color animations respond to changes in currentColor
and inherited column-rule-color that occur while the animation
is in progress.

column-width animations repond to changes in font-size
and inherited column-width that occur while the animation
is in progress.

Note this test fails in
Edge 18
Firefox 67 (partially)
Safari 12.1

Bug: 812908
Change-Id: Ic28819a7f4aa3c8c30b11d58ea2600563a182c07
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1689612
Reviewed-by: Robert Flack flackr@chromium.org
Commit-Queue: Eric Willigers ericwilligers@chromium.org
Cr-Commit-Position: refs/heads/master@{#675042}
"