Disable color view animations when stable insets change

Prevents color view from showing up on phones when
the orientation changes to landscape. Previously, the
animation was only prevented when the stable inset of a
bar became nonzero; now we disable animations whenever
the nonzeroness changes.

Bug: 19353466

Change-Id: Ibcf15ee4e0c9fba429745dde1b808ee41c7473cf