libgestures: CY Add finger_metrics coverage

BUG=b:239447510
TEST=USE="coverage" FEATURES="test noclean" emerge-brya chromeos-base/gestures

Change-Id: Ib94b502b523959c69ef322f2b847020023666f9a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/gestures/+/4004881
Tested-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Kenneth Albanowski <kenalba@google.com>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Auto-Submit: Denis Brockus <dbrockus@chromium.org>
Commit-Queue: Denis Brockus <dbrockus@chromium.org>
2 files changed