Function Unown

common/memory.h:277–283

  }

  static void Unown(uintptr_t ptr) noexcept {
    if (IsReferenceCount(ptr)) {
      const auto* reference_count = AsReferenceCount(ptr);
      ABSL_ASSUME(reference_count != nullptr);
      common_internal::StrongUnref(reference_count);
    }
  }

  uintptr_t ptr_ = kNone;
};