已弃用: platform-webworker is deprecated in Angular and will be removed in a future version of Angular
Sets up a new channel on the MessageBusSource. MUST be called before calling from on the channel. If runInZone is true then the source will emit events inside the angular zone. if runInZone is false then the source will emit events inside the global zone.
Assigns this source to the given zone. Any channels which are initialized with runInZone set to true will emit events that will be executed within the given zone.