message: Fix missed review comments
diff: @@ -60,11 +60,12 @@ Status XlaGpuDeviceFactory::CreateDevices(
  std::set<int> gpu_ids;
  int num_visible_devices = platform.ValueOrDie()->VisibleDeviceCount();
  if (allowed_gpus.empty()) {
  - for (int i = 0; i < num_visible_devices; ++i) gpu_ids.insert(i);
  + for (int i = 0; i < num_visible_devices; ++i) {
  + gpu_ids.insert(i);
  + }
  } else {
  // For loop below is copied from gpu/gpu_device.cc. It validates
  - // configuration string. It should be redundant since code would fail there
  - // before it gets to here.
  + // the visible_device_list and populates gpu_ids set.
  const std::vector<string> visible_devices =
  absl::StrSplit(allowed_gpus, ',');
  for (const string& platform_gpu_id_str : visible_devices) {
  @@ -82,8 +83,7 @@ Status XlaGpuDeviceFactory::CreateDevices(
  gpu_ids.insert(platform_gpu_id);
  }
  }
  - for (const auto i : gpu_ids) {
  - // Skip devices that are not in the set.
  + for (int i : gpu_ids) {
  XlaDevice::Options options;
  options.platform = platform.ValueOrDie();
  options.device_name_prefix = name_prefix;
  