5 files changed, 12 insertions, 6 deletions
diff --git a/absl/container/btree_set.h b/absl/container/btree_set.h
index 51dc42b7..97b203a9 100644
--- a/absl/container/btree_set.h
+++ b/absl/container/btree_set.h
@@ -52,6 +52,7 @@
 #ifndef ABSL_CONTAINER_BTREE_SET_H_
 #define ABSL_CONTAINER_BTREE_SET_H_
 
+#include "absl/base/attributes.h"
 #include "absl/container/internal/btree.h"  // IWYU pragma: export
 #include "absl/container/internal/btree_container.h"  // IWYU pragma: export
 
diff --git a/absl/container/flat_hash_map.h b/absl/container/flat_hash_map.h
index aa2c5c8c..1c43e92d 100644
--- a/absl/container/flat_hash_map.h
+++ b/absl/container/flat_hash_map.h
@@ -36,6 +36,7 @@
 #include <utility>
 
 #include "absl/algorithm/container.h"
+#include "absl/base/attributes.h"
 #include "absl/base/macros.h"
 #include "absl/container/hash_container_defaults.h"
 #include "absl/container/internal/container_memory.h"
@@ -121,9 +122,10 @@ struct FlatHashMapPolicy;
 template <class K, class V, class Hash = DefaultHashContainerHash<K>,
           class Eq = DefaultHashContainerEq<K>,
           class Allocator = std::allocator<std::pair<const K, V>>>
-class flat_hash_map : public absl::container_internal::raw_hash_map<
-                          absl::container_internal::FlatHashMapPolicy<K, V>,
-                          Hash, Eq, Allocator> {
+class ABSL_INTERNAL_ATTRIBUTE_OWNER flat_hash_map
+    : public absl::container_internal::raw_hash_map<
+          absl::container_internal::FlatHashMapPolicy<K, V>, Hash, Eq,
+          Allocator> {
   using Base = typename flat_hash_map::raw_hash_map;
 
  public:
diff --git a/absl/container/flat_hash_set.h b/absl/container/flat_hash_set.h
index e558b071..7b9e0060 100644
--- a/absl/container/flat_hash_set.h
+++ b/absl/container/flat_hash_set.h
@@ -35,6 +35,7 @@
 #include <utility>
 
 #include "absl/algorithm/container.h"
+#include "absl/base/attributes.h"
 #include "absl/base/macros.h"
 #include "absl/container/hash_container_defaults.h"
 #include "absl/container/internal/container_memory.h"
@@ -117,7 +118,7 @@ struct FlatHashSetPolicy;
 template <class T, class Hash = DefaultHashContainerHash<T>,
           class Eq = DefaultHashContainerEq<T>,
           class Allocator = std::allocator<T>>
-class flat_hash_set
+class ABSL_INTERNAL_ATTRIBUTE_OWNER flat_hash_set
     : public absl::container_internal::raw_hash_set<
           absl::container_internal::FlatHashSetPolicy<T>, Hash, Eq, Allocator> {
   using Base = typename flat_hash_set::raw_hash_set;
diff --git a/absl/container/node_hash_map.h b/absl/container/node_hash_map.h
index 31beb1da..4bba130d 100644
--- a/absl/container/node_hash_map.h
+++ b/absl/container/node_hash_map.h
@@ -42,6 +42,7 @@
 #include <utility>
 
 #include "absl/algorithm/container.h"
+#include "absl/base/attributes.h"
 #include "absl/container/hash_container_defaults.h"
 #include "absl/container/internal/container_memory.h"
 #include "absl/container/internal/node_slot_policy.h"
@@ -116,7 +117,7 @@ class NodeHashMapPolicy;
 template <class Key, class Value, class Hash = DefaultHashContainerHash<Key>,
           class Eq = DefaultHashContainerEq<Key>,
           class Alloc = std::allocator<std::pair<const Key, Value>>>
-class node_hash_map
+class ABSL_INTERNAL_ATTRIBUTE_OWNER node_hash_map
     : public absl::container_internal::raw_hash_map<
           absl::container_internal::NodeHashMapPolicy<Key, Value>, Hash, Eq,
           Alloc> {
diff --git a/absl/container/node_hash_set.h b/absl/container/node_hash_set.h
index deeb49ce..82e4923e 100644
--- a/absl/container/node_hash_set.h
+++ b/absl/container/node_hash_set.h
@@ -40,6 +40,7 @@
 #include <type_traits>
 
 #include "absl/algorithm/container.h"
+#include "absl/base/attributes.h"
 #include "absl/container/hash_container_defaults.h"
 #include "absl/container/internal/container_memory.h"
 #include "absl/container/internal/node_slot_policy.h"
@@ -111,7 +112,7 @@ struct NodeHashSetPolicy;
 //  }
 template <class T, class Hash = DefaultHashContainerHash<T>,
           class Eq = DefaultHashContainerEq<T>, class Alloc = std::allocator<T>>
-class node_hash_set
+class ABSL_INTERNAL_ATTRIBUTE_OWNER node_hash_set
     : public absl::container_internal::raw_hash_set<
           absl::container_internal::NodeHashSetPolicy<T>, Hash, Eq, Alloc> {
   using Base = typename node_hash_set::raw_hash_set;