src/vs/workbench/services/workingCopy/browser/workingCopyBackupService.ts/BrowserWorkingCopyBackupService/constructor
class BrowserWorkingCopyBackupService:	constructor(
		@IWorkspaceContextService contextService: IWorkspaceContextService,
		@IWorkbenchEnvironmentService environmentService: IWorkbenchEnvironmentService,
		@IFileService fileService: IFileService,
		@ILogService logService: ILogService
	) {
		super(joinPath(environmentService.userRoamingDataHome, 'Backups', contextService.getWorkspace().id), fileService, logService);
	}