After https://github.com/whatwg/mediasession/pull/104 this table is non-normative, and so the description of the behaviors do not need to be so exhaustive. The normative requirements should be part of the various algorithms, and so a high-level summary of the behavior is sufficient in this context.
From @foolip on September 8, 2015 9:26
After https://github.com/whatwg/mediasession/pull/104 this table is non-normative, and so the description of the behaviors do not need to be so exhaustive. The normative requirements should be part of the various algorithms, and so a high-level summary of the behavior is sufficient in this context.
Copied from original issue: WICG/mediasession#105