skipAd

Skip the in-progress ad break, honoring the manifest's skip policy: the break must declare controls.skipOffset and at least that many seconds of the break must have elapsed. Returns true when the skip was applied (the break cuts to content, emitting the balanced adend + adbreakend), false when suppressed (no active break, no skip control, or before the offset). Use getAdBreakStatus to drive a "Skip in Ns" affordance. Mirrors the web/iOS skipAd().