[filesapp] Alpha-order PRINT_IF_NOT_DEFAULT values

Order file_manager_browsertest_base.cc PRINT_IF_NOT_DEFAULT values (to
guide developers about where to place new values: just alpha-order).

Tbr: fdegros
Bug: code-health
Change-Id: I2a9c7dda73e0de54bd6a98ceb1283854fffd1c33
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2471058Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#817352}

chrome/browser/chromeos/file_manager/file_manager_browsertest_base.cc

@@ -716,12 +716,12 @@ std::ostream& operator<<(std::ostream& out,
   PRINT_IF_NOT_DEFAULT(mount_volumes)
   PRINT_IF_NOT_DEFAULT(native_smb)
   PRINT_IF_NOT_DEFAULT(offline)
+  PRINT_IF_NOT_DEFAULT(single_partition_format)
   PRINT_IF_NOT_DEFAULT(smbfs)
   PRINT_IF_NOT_DEFAULT(tablet_mode)
   PRINT_IF_NOT_DEFAULT(trash)
   PRINT_IF_NOT_DEFAULT(zip)
   PRINT_IF_NOT_DEFAULT(zip_no_nacl)
-  PRINT_IF_NOT_DEFAULT(single_partition_format)
 
 #undef PRINT_IF_NOT_DEFAULT