Qualifies std::string in 3p directories
Qualifies std::string in 3p directories

This migration was performed with fix_aliases with the spec:
fix_alias {
  convert_to_aliases: false
  symbol_whitelist_regexp: "string"
  old_header: "do-not-modify-any-headers-please"
}

See go/absl-cleanup-lsc and b/150382009 for more details.

BEGIN_PUBLIC
Internal changes
END_PUBLIC

A 'set noparent' in your OWNERS file may have prevented this CL from being
globally approved. For more information, please see go/owners#noparent

PiperOrigin-RevId: 361197949

google/clif,google/clif,google/clif