Fix bug 5045004 - onActionModeFinished happens well before the

ActionBar is actually gone

Defer calling onDestroyActionMode until the action bar UI has fully
transitioned out of the mode and any bar-hiding layout change is ready
to happen. This helps apps better respond to layout changes resulting
from action mode UI.

Change-Id: I8e560ec566f4c3fa4a701c4b3aeb531c16169168