Replace calls to set.count() with ContainsKey in QUIC.

net/quic/quic_fec_group.cc

 // Copyright (c) 2012 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/quic_fec_group.h"
 
 #include <limits>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
+#include "base/stl_util.h"
 
 using base::StringPiece;
 using std::numeric_limits;
 using std::set;
 
 namespace net {
 
 namespace {
 const QuicPacketSequenceNumber kNoSequenceNumber = kuint64max;
 }  // namespace
 
 QuicFecGroup::QuicFecGroup()
     : min_protected_packet_(kNoSequenceNumber),
       max_protected_packet_(kNoSequenceNumber),
       payload_parity_len_(0),
       effective_encryption_level_(NUM_ENCRYPTION_LEVELS) {
 }
 
 QuicFecGroup::~QuicFecGroup() {}
 
 bool QuicFecGroup::Update(EncryptionLevel encryption_level,
                           const QuicPacketHeader& header,
                           StringPiece decrypted_payload) {
-  if (received_packets_.count(header.packet_sequence_number) != 0) {
+  if (ContainsKey(received_packets_, header.packet_sequence_number)) {
     return false;
   }
   if (min_protected_packet_ != kNoSequenceNumber &&
       max_protected_packet_ != kNoSequenceNumber &&
       (header.packet_sequence_number < min_protected_packet_ ||
        header.packet_sequence_number > max_protected_packet_)) {
     DLOG(ERROR) << "FEC group does not cover received packet: "
                 << header.packet_sequence_number;
     return false;
   }
@@ skipping 116 matching lines @@
 }
 
 size_t QuicFecGroup::NumMissingPackets() const {
   if (min_protected_packet_ == kNoSequenceNumber)
     return numeric_limits<size_t>::max();
   return (max_protected_packet_ - min_protected_packet_ + 1) -
       received_packets_.size();
 }
 
 }  // namespace net