src/vs/platform/browser/contextScopedHistoryWidget.ts/createAndBindHistoryNavigationWidgetScopedContextKeyService
export function createAndBindHistoryNavigationWidgetScopedContextKeyService(contextKeyService: IContextKeyService, widget: IContextScopedHistoryNavigationWidget): { scopedContextKeyService: IContextKeyService, historyNavigationEnablement: IContextKey<boolean> } {
	const scopedContextKeyService = createWidgetScopedContextKeyService(contextKeyService, widget);
	bindContextScopedWidget(scopedContextKeyService, widget, HistoryNavigationWidgetContext);
	const historyNavigationEnablement = new RawContextKey<boolean>(HistoryNavigationEnablementContext, true).bindTo(scopedContextKeyService);
	return { scopedContextKeyService, historyNavigationEnablement };
}