d67a681ba6
This new property helps with separating the current responsibilities of lastMediaAccess such that after this: - lastMediaAccess is only updated when media starts playing allowing clients to order media tabs and find the first / last tab with in progress media. - lastHadMediaSessionActive indicates whether a MediaSession should be active for this tab and serves as a backup for lastMediaUrl for the situations where a website might allow media to continue playing even when the users accesses another page (with another URL) in that same HTML document.