GitLab

Rename AnimationState to UiState and use it to determine the
visibility of elements. Remove multiple variables in favor of
UiState.

Bug: 1075994
Change-Id: I0d7413fb173dadbff22cde0eb3af6f43586bdee2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2352883
Commit-Queue: Renato Silva <rrsilva@google.com>
Reviewed-by: Denis Kuznetsov [CET] <antrim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798780}