public interface PerformanceTimeline
Reporting of performance timeline events, as specified in https://w3c.github.io/performance-timeline/#dom-performanceobserver.
enablePreviously buffered events would be reported before method returns. See also: timelineEventAdded
eventTypes- The types of event to report, as specified in https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype The specified filter overrides any previous filters, passing empty filter disables recording. Note that not all types exposed to the web platform are currently supported.