Marking as available. See https://chromium-review.googlesource.com/c/chromium/src/+/1175002#message-ad7f43bd55e45a9aa3260df8350a42c27698dd4e where those tests were deleted.

CL at https://chromium-review.googlesource.com/c/chromium/src/+/1332767.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/912b4b95d420f4c0b7793e4df2c89e99f310177d

commit 912b4b95d420f4c0b7793e4df2c89e99f310177d
Author: Sammie Quon <sammiequon@google.com>
Date: Wed Nov 14 02:10:22 2018

cros: Readd fingerprint_progress_arc tests.

They were deleted when fingerprint_progress_arc.js was moved from
settings to cr_elements.

Test: browser_tests CrElementsFingerprintProgressArcTest.*
Bug:  894285 
Change-Id: I66419456bb00b30b348dcfad1c663237b41e2412
Reviewed-on: https://chromium-review.googlesource.com/c/1332767
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607854}
[modify] https://crrev.com/912b4b95d420f4c0b7793e4df2c89e99f310177d/chrome/test/data/webui/cr_elements/cr_elements_browsertest.js
[add] https://crrev.com/912b4b95d420f4c0b7793e4df2c89e99f310177d/chrome/test/data/webui/cr_elements/cr_fingerprint_progress_arc_tests.js
[modify] https://crrev.com/912b4b95d420f4c0b7793e4df2c89e99f310177d/testing/buildbot/filters/webui_polymer2_browser_tests.filter