If the user can neither go back nor forward, hide those controls for a cleaner look.
- Group Reviewers
- R120:18ee82361164: [Lock Screen] Show Previous/Next buttons only if supported
If one action (e.g. only "Next" is supported), both buttons are shown with the Back button grayed out. But for the case of a simple stream or so where really only play/pause is supported, it makes it much cleaner:
(I initially did this for Task manager but here I found it looked odd with the tiny lost play icon