Update expectations for threaded animation and transition tests

This updates expectations for flaky threaded animation and transition
tests, mostly updating previous flakes to be Windows-only and adding
new Windows-only flake.

TBR=vollick
BUG=248938

Review URL: https://codereview.chromium.org/101913005

git-svn-id: svn://svn.chromium.org/blink/trunk@163713 bbb929c8-8fbe-4397-9dbb-9b2b20218538