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First in a series of patches to fix animation of CSS logical properties.
Follow up patches will deal with programmatic animations as well as
updating animations in response to a change in writing mode or text
direction.

Bug: 1070627, 865579
Change-Id: Ibce8215bbf8238bbaf2ae2d0d35ddcca5ffdfc78
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2414552Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
Commit-Queue: Kevin Ellis <kevers@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807874}