The cue point list represents a time-schedule of ad breaks. Note
that individual ads in the ad break are not included in the schedule.
Cue point value representing a preroll.
Cue point value representing a postroll.
getCuePoints() returns Array of number
List of time offsets from the beginning of the content at which ad breaks
are scheduled. Preroll and postroll ad break times have special values.
Preroll ad break offset value is represented by
google.ima.AdCuePoints.PREROLL, postroll break by
non-null Array of number List of time offsets at which the ads are
scheduled to play.