Move always-on-top to the callers

- This was accidentally included in ag/10788780, where only the bubbles
  AV should be using an always-on-top MW task

Bug: 152808872
Test: Start auto in emulator and ensure the task is not always on top

Change-Id: If0de9d5856b15dbca7661bf97a88b10fd63ec9db
2 files changed