Reland of Use std::tie() for operator< in components/

components/policy/core/common/policy_namespace.cc

Index: components/policy/core/common/policy_namespace.cc
diff --git a/components/policy/core/common/policy_namespace.cc b/components/policy/core/common/policy_namespace.cc
index 0fac9ca1e458aa076434f0e93e3795d2bd37b1ac..33a999283544d96de1895ff6734b23e49994d3b0 100644
--- a/components/policy/core/common/policy_namespace.cc
+++ b/components/policy/core/common/policy_namespace.cc
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 #include "components/policy/core/common/policy_namespace.h"
+
+#include <tuple>
 
 namespace policy {
 
@@ -26,8 +28,8 @@
 }
 
 bool PolicyNamespace::operator<(const PolicyNamespace& other) const {
-  return domain < other.domain ||
-         (domain == other.domain && component_id < other.component_id);
+  return std::tie(domain, component_id) <
+         std::tie(other.domain, other.component_id);
 }
 
 bool PolicyNamespace::operator==(const PolicyNamespace& other) const {