Remove a QUIC test only flag(limit_rto_increase_for_tests) to limit the

net/quic/quic_sent_packet_manager_test.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/quic_sent_packet_manager.h"
 
 #include "base/stl_util.h"
 #include "net/quic/test_tools/quic_sent_packet_manager_peer.h"
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 1042 matching lines @@
     EXPECT_EQ(delay,
               QuicSentPacketManagerPeer::GetRetransmissionDelay(&manager_));
     delay = delay.Add(delay);
     EXPECT_CALL(*send_algorithm_, OnPacketAbandoned(i + 1, _));
     EXPECT_CALL(*send_algorithm_, OnRetransmissionTimeout());
     manager_.OnRetransmissionTimeout();
     RetransmitNextPacket(i + 2);
   }
 }
 
-TEST_F(QuicSentPacketManagerTest, GetTestTransmissionDelayTailDrop) {
-  FLAGS_limit_rto_increase_for_tests = true;
-
-  SendDataPacket(1);
-  QuicTime::Delta delay = QuicTime::Delta::FromMilliseconds(500);
-  EXPECT_CALL(*send_algorithm_, RetransmissionDelay())
-      .WillRepeatedly(Return(delay));
-
-  // No backoff for the first 5 retransmissions.
-  for (int i = 0; i < 5; ++i) {
-    EXPECT_EQ(delay,
-              QuicSentPacketManagerPeer::GetRetransmissionDelay(&manager_));
-    EXPECT_CALL(*send_algorithm_, OnPacketAbandoned(i + 1, _));
-    EXPECT_CALL(*send_algorithm_, OnRetransmissionTimeout());
-    manager_.OnRetransmissionTimeout();
-    RetransmitNextPacket(i + 2);
-  }
-
-  // Then backoff starts
-  EXPECT_EQ(delay.Add(delay),
-            QuicSentPacketManagerPeer::GetRetransmissionDelay(&manager_));
-}
-
 }  // namespace
 }  // namespace test
 }  // namespace net