Implement custom PiP close action on TV.

The custom close action will replace the system close action and
the button in the menu will be colored red to be able to tell it
apart.
If one of the custom actions matches the close actions it will be
removed to avoid duplicates resulting from the custom close action.

If the app doesn't close the PiP after five seconds the system will
continue to close the PiP as normal.

Bug: 218487423
Test: manual
Change-Id: Ic3c520c50ac0e3d2f0e73cf2f71d47a4f548f861