src/vs/workbench/services/workingCopy/electron-sandbox/workingCopyBackupTracker.ts/NativeWorkingCopyBackupTracker/noVeto
class NativeWorkingCopyBackupTracker:	private async noVeto(backupsToDiscard: IWorkingCopyIdentifier[]): Promise<boolean> {

		// Discard backups from working copies the
		// user either saved or reverted
		await this.discardBackupsBeforeShutdown(backupsToDiscard);

		return false; // no veto (no dirty)
	}