We have preferences existing in the sound settings page and new sound screen. In order to ensure VolumeSeekBarPreferences work smoothly, this changes support adding callback handling to VolumeSeekBarPreferences that are migrated in the new screens. Bug: 360015496 Test: visual test Flag: EXEMPT refactor the existing feature Change-Id: Iaee4581f1c2687db0b405cd9edbfef2088d9bb12