src/vs/workbench/common/notifications.ts/NotificationViewItemProgress/done
class NotificationViewItemProgress:	done(): void {
		if (this._state.done) {
			return;
		}

		this._state.done = true;

		this._state.infinite = undefined;
		this._state.total = undefined;
		this._state.worked = undefined;

		this._onDidChange.fire();
	}