Internal QUICHE change

PiperOrigin-RevId: 340865909
Change-Id: I149591b5a141c48bb866c3e80b70cc2f1171259d
diff --git a/quic/test_tools/quic_unacked_packet_map_peer.cc b/quic/test_tools/quic_unacked_packet_map_peer.cc
index 1ecc65f..fa3408c 100644
--- a/quic/test_tools/quic_unacked_packet_map_peer.cc
+++ b/quic/test_tools/quic_unacked_packet_map_peer.cc
@@ -20,5 +20,11 @@
   *const_cast<Perspective*>(&unacked_packets->perspective_) = perspective;
 }
 
+// static
+size_t QuicUnackedPacketMapPeer::GetCapacity(
+    const QuicUnackedPacketMap& unacked_packets) {
+  return unacked_packets.unacked_packets_.capacity();
+}
+
 }  // namespace test
 }  // namespace quic