Ensure that autohide accounts for accessibilty timeout override

- If the user requests a longer accessibility timeout for controls, we
  should use that timeout instead of the fixed autohide duration

Fixes: 241303251
Test: Verify with normal/extended accessibility timeout that bar autohides
Change-Id: I0fe92996f2b21513e7a0d06fcccca352768070c6
2 files changed