Fix bug in QuicSentPacketManager::ClearPreviousRetransmissions where

net/quic/quic_sent_packet_manager_test.cc

Index: net/quic/quic_sent_packet_manager_test.cc
diff --git a/net/quic/quic_sent_packet_manager_test.cc b/net/quic/quic_sent_packet_manager_test.cc
index a83c21704af0ab298988d3d876791c41fbad0137..939a5d34907a750be84ad0aef055b27ea6582d31 100644
--- a/net/quic/quic_sent_packet_manager_test.cc
+++ b/net/quic/quic_sent_packet_manager_test.cc
@@ -510,13 +510,13 @@ TEST_F(QuicSentPacketManagerTest, AckPreviousTransmissionThenTruncatedAck) {
     received_info.missing_packets.insert(6);
     received_info.is_truncated = true;
     EXPECT_CALL(*send_algorithm_, OnPacketAcked(1, _));
+    EXPECT_CALL(*send_algorithm_, OnPacketLost(3, _));
     EXPECT_CALL(*send_algorithm_, OnPacketAbandoned(3, _));
-    EXPECT_CALL(*send_algorithm_, OnPacketAbandoned(4, _));
     manager_.OnIncomingAck(received_info, QuicTime::Zero());
   }
 
   // High water mark will be raised.
-  QuicPacketSequenceNumber unacked[] = { 5, 6, 7, 8, 9 };
+  QuicPacketSequenceNumber unacked[] = { 4, 5, 6, 7, 8, 9 };
   VerifyUnackedPackets(unacked, arraysize(unacked));
   QuicPacketSequenceNumber retransmittable[] = { 5, 6, 7, 8, 9 };
   VerifyRetransmittablePackets(retransmittable, arraysize(retransmittable));