Add quic_map_util.

net/quic/core/quic_received_packet_manager.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/quic_received_packet_manager.h"
 
 #include <limits>
 #include <utility>
 
-#include "base/stl_util.h"
 #include "net/base/linked_hash_map.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/core/quic_connection_stats.h"
 #include "net/quic/platform/api/quic_bug_tracker.h"
 
 namespace net {
 
 namespace {
 
 // The maximum number of packets to ack immediately after a missing packet for
@@ skipping 120 matching lines @@
 
 bool QuicReceivedPacketManager::ack_frame_updated() const {
   return ack_frame_updated_;
 }
 
 QuicPacketNumber QuicReceivedPacketManager::GetLargestObserved() const {
   return ack_frame_.largest_observed;
 }
 
 }  // namespace net