Builds the page's display list, with limits and cancellation.
public DisplayList CreateDisplayList(ContentOptions options)
Limits, optional-content state and cancellation for the content run.
ISO 32000-2 §8.5.3, §8.6. As CreateDisplayList(): lists are kept per page and limits; a list built with an OptionalContentState is not kept, since the state can change without any COS object changing.