Properly cancel animators when View doesn't exist in starting state.

Bug 19290065

When a transition was interrupted, if a View was not in the start
state, but in the end state, then any animator on that View was
not canceled. This detects that situation and allows canceling
the animator on that View.

Change-Id: Ib1d0579bb6b211782c40c6327be59b0c59682731