diff --git a/absl/synchronization/notification.cc b/absl/synchronization/notification.cc
index 53ace00..e91b903 100644
--- a/absl/synchronization/notification.cc
+++ b/absl/synchronization/notification.cc
@@ -22,6 +22,7 @@
 #include "absl/time/time.h"
 
 namespace absl {
+ABSL_NAMESPACE_BEGIN
 
 void Notification::Notify() {
   MutexLock l(&this->mutex_);
@@ -44,15 +45,6 @@
   MutexLock l(&this->mutex_);
 }
 
-static inline bool HasBeenNotifiedInternal(
-    const std::atomic<bool> *notified_yet) {
-  return notified_yet->load(std::memory_order_acquire);
-}
-
-bool Notification::HasBeenNotified() const {
-  return HasBeenNotifiedInternal(&this->notified_yet_);
-}
-
 void Notification::WaitForNotification() const {
   if (!HasBeenNotifiedInternal(&this->notified_yet_)) {
     this->mutex_.LockWhen(Condition(&HasBeenNotifiedInternal,
@@ -82,4 +74,5 @@
   return notified;
 }
 
+ABSL_NAMESPACE_END
 }  // namespace absl