src/vs/workbench/browser/parts/views/viewsService.ts/ViewsService/onDidChangeContainerLocation
class ViewsService:	private onDidChangeContainerLocation(viewContainer: ViewContainer, from: ViewContainerLocation, to: ViewContainerLocation): void {
		this.deregisterViewletOrPanel(viewContainer, from);
		this.registerViewletOrPanel(viewContainer, to);
	}