LookaheadFilterInterpreter cleanup CurveSegment selection

The code does the same thing but I think it is
easier to read the condition tree without the
extra level of else in there.  I also added a
general condition level comment to indicate
the base CurveSegments type being selected.

BUG=b:281873350
TEST=USE="coverage" FEATURES="test noclean" emerge-brya chromeos-base/gestures

Change-Id: Ia118eb467ecba8d10694ec7b936b597ecaf2046b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/gestures/+/4528298
Code-Coverage: Henry Barnor <hbarnor@chromium.org>
Auto-Submit: Denis Brockus <dbrockus@chromium.org>
Tested-by: Denis Brockus <dbrockus@chromium.org>
Commit-Queue: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
1 file changed