src/vs/workbench/browser/layoutState.ts/LayoutStateModel/constructor
class LayoutStateModel:	constructor(
		private readonly storageService: IStorageService,
		private readonly configurationService: IConfigurationService,
		private readonly contextService: IWorkspaceContextService,
		private readonly container: HTMLElement) {
		super();
		this._register(this.configurationService.onDidChangeConfiguration(configurationChange => this.updateStateFromLegacySettings(configurationChange)));
	}