src/vs/workbench/contrib/markers/browser/markersViewActions.ts/MarkersFilterActionViewItem/createFilters
class MarkersFilterActionViewItem:	private createFilters(container: HTMLElement): void {
		this.actionbar = this._register(new ActionBar(container, {
			actionViewItemProvider: action => {
				if (action.id === this.filtersAction.id) {
					return this.instantiationService.createInstance(FiltersDropdownMenuActionViewItem, action, this.markersView.filters, this.actionRunner);
				}
				return undefined;
			}
		}));
		this.actionbar.push(this.filtersAction, { icon: true, label: false });
	}