commit 6948544a4dc40a02ec670a75f966db61b960997e
author Chalard Jean <jchalard@google.com> Mon May 10 23:00:55 2021 +0900
committer Chalard Jean <jchalard@google.com> Fri May 14 15:27:12 2021 +0900
tree e3ce5e7e91b841ecb8611cf5abb7db390a3278dd
parent e4472e31519e22d092baf7d1ee7aed24784e4e7d

Make yield-to-bad-wifi behavior backward compatible with R

Yielding cell wins to exiting wifi (whether good or bad).
It loses to bad wifi that's not exiting.

In R, yielding to bad wifi only affects wifis that are
unvalidated, but a wifi that is exiting should still be
dropped in favor of a cell that yields to bad wifi.

I had misunderstood the policy and implemented it wrong.
Now it's implemented right, and has careful tests.

Test: new tests for this
Bug: 186458024
Change-Id: Ib8637100d491e72a2edb837584ce55b7dda58524