Ensuring that we remove the input consumer after moving expanded PiP

- We re-enable the input consumer once the user starts dragging the
  expanded PiP to allow the touch handler to take over, but once we
  reset the timer (after showing the menu again), we need to disable
  the input consumer so that the menu can get touches again.

Bug: 36266913
Test: Expand PiP, move, click action
Change-Id: I30ebccd165fd764a9a8de8313659c24ecd12aec0