Removed unnecessary static_cast and replaced it with "lu".

net/quic/quic_unacked_packet_map_test.cc

 // Copyright 2014 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_unacked_packet_map.h"
 
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using std::min;
@@ skipping 100 matching lines @@
 
   unacked_packets_.IncreaseLargestObserved(1);
   VerifyUnackedPackets(NULL, 0);
   VerifyInFlightPackets(NULL, 0);
   VerifyRetransmittablePackets(NULL, 0);
 }
 
 TEST_F(QuicUnackedPacketMapTest, DiscardOldRttOnly) {
   // Acks are only tracked for RTT measurement purposes, and are discarded
   // when more than 200 accumulate.
-  for (int i = 1; i < 400; ++i) {
+  for (size_t i = 1; i < 400; ++i) {
     unacked_packets_.AddPacket(CreateNonRetransmittablePacket(i));
     unacked_packets_.SetSent(i, now_, kDefaultAckLength, false);
     unacked_packets_.RemoveObsoletePackets();
-    EXPECT_EQ(static_cast<size_t>(min(i, 200)),
+    EXPECT_EQ(min(i, 200lu),
               unacked_packets_.GetNumUnackedPacketsDebugOnly());
   }
 }
 
 TEST_F(QuicUnackedPacketMapTest, RetransmittableInflightAndRtt) {
   // Simulate a retransmittable packet being sent and acked.
   unacked_packets_.AddPacket(CreateRetransmittablePacket(1));
   unacked_packets_.SetSent(1, now_, kDefaultLength, true);
 
   QuicPacketSequenceNumber unacked[] = { 1 };
@@ skipping 147 matching lines @@
   unacked_packets_.RestoreInFlight(1);
   VerifyUnackedPackets(unacked, arraysize(unacked));
   VerifyInFlightPackets(unacked, arraysize(unacked));
   VerifyRetransmittablePackets(retransmittable, arraysize(retransmittable));
   EXPECT_EQ(2 * kDefaultLength, unacked_packets_.bytes_in_flight());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net