Customize media control button labels should automatically reflect the specified mime type
|Reported by:||celloexpressions||Owned by:|
 updated the button labels for the header video control to reflect that it's used for videos, rather than media in general. However, this approach only fixes this one control instance, and is something that should be brought to all media controls.
For 4.7, we should add an inline note where  is referencing this ticket and explaining that in the future all media controls will default to labeling the buttons based on the mime type (and as a reminder to remove those overrides). Then, this ticket can transition to a future release/4.8 enhancement for updating the default button labels to use the mime_type where possible, and fall back to the existing defaults with media. We'll need an array of known mime types mapped to the corresponding media type labels and should be able to substitute those into each of the default button label strings in the control constructor.