Returns only the stories (without the broadcasts). The tray_session_id is
the process's tray session (MobileTraySession), never a caller's value: the
app mints it once at cold start and the profile telemetry names the same id
as story_ranking_token (without its dashes, the Android 451 recording).
Tray on the Timeline.
Returns only the stories (without the broadcasts). The
tray_session_idis the process's tray session (MobileTraySession), never a caller's value: the app mints it once at cold start and the profile telemetry names the same id asstory_ranking_token(without its dashes, the Android 451 recording).