src/vs/workbench/services/files/electron-sandbox/elevatedFileService.ts/NativeElevatedFileService/isSupported
class NativeElevatedFileService:	isSupported(resource: URI): boolean {
		// Saving elevated is currently only supported for local
		// files for as long as we have no generic support from
		// the file service
		// (https://github.com/microsoft/vscode/issues/48659)
		return resource.scheme === Schemas.file;
	}