Function Own

common/memory.h:268–275

  static void Destroy(uintptr_t ptr) noexcept { Unown(ptr); }

  static uintptr_t Own(uintptr_t ptr) noexcept {
    if (IsReferenceCount(ptr)) {
      const auto* refcount = Owner::AsReferenceCount(ptr);
      ABSL_ASSUME(refcount != nullptr);
      common_internal::StrongRef(refcount);
    }
    return ptr;
  }

  static void Unown(uintptr_t ptr) noexcept {
    if (IsReferenceCount(ptr)) {