src/vs/platform/history/browser/contextScopedHistoryWidget.ts/ContextScopedFindInput/constructor
class ContextScopedFindInput:	constructor(container: HTMLElement | null, contextViewProvider: IContextViewProvider, options: IFindInputOptions,
		@IContextKeyService contextKeyService: IContextKeyService, showFindOptions: boolean = false
	) {
		super(container, contextViewProvider, showFindOptions, options);
		this._register(createAndBindHistoryNavigationWidgetScopedContextKeyService(contextKeyService, <IContextScopedHistoryNavigationWidget>{ target: this.inputBox.element, historyNavigator: this.inputBox }).scopedContextKeyService);
	}