src/vs/workbench/browser/parts/views/viewsService.ts/ViewsService/getActiveViewPaneContainerWithId
class ViewsService:	getActiveViewPaneContainerWithId(viewContainerId: string): IViewPaneContainer | null {
		const viewContainer = this.viewDescriptorService.getViewContainerById(viewContainerId);
		return viewContainer ? this.getActiveViewPaneContainer(viewContainer) : null;
	}