Add fontSize and update styles on change
Make defaults button work
Merge branch 'caption-styles' into captions-build
Don't show caption settings for native captions
Merge branch 'caption-styles' into captions-build
Don't add caption button if no captions available
If the only items in the menu are the off menu and the settings item,
re-hide the control.
Merge branch 'caption-styles' into captions-build
Do a null check against tech
Merge branch 'caption-styles' into captions-build
Various updates.
Default buttons.
Font-size setting.
Don't show caption settings button in native mode.
Don't show captions button if there aren't any tracks.