Fix issue with quickscrub not getting reset when the state changes

- When resuming launching in forced-portrait, the orientation of the device
  changes, which causes a state transition in QuickScrub. In such a case,
  we should end the previous gesture before changing state. In addition, we
  need to bake the home button view that we are animating, otherwise we may
  have already updated the home button view by the time we get the state
  change (and will reset the wrong view's state).

Bug: 73338008
Test: Go into a forced landscape activity, try to quickscrub home and
      ensure that the button is reset

Change-Id: Icb09248648dd9643a438344d2357cb42913d1260