
When refreshing the media playlist, we should try to request via a url with [delivery directives](https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis#section-6.2.5). However, when initially loading the media playlist or when the last loading with delivery directives encountered an error, we should not allow using those directives. PiperOrigin-RevId: 629060177
Test data module
Provides sample data for media unit and instrumentation tests.