Fix a finger spacing bug when exchanging tips.

This was working most of the time because the fingers happened
to be the right distance apart already.  However, there was
nothing in the code forcing the fingers to be the right distance
apart when getting/returning fingertips to the nest.  This
caused some very strange failures, but this CL explicitly
controls the inter-finger spacing during fingertip swaps.

BUG=chromium:474709
TEST=manual

Change-Id: I333c229622ed7ed30615b715f96152b2f5a5dee3
Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/270106
Reviewed-by: Shyh-In Hwang <josephsih@chromium.org>
1 file changed