Remove parity tracking in FEC groups as part of the migration to

net/quic/quic_connection_test.cc

Index: net/quic/quic_connection_test.cc
diff --git a/net/quic/quic_connection_test.cc b/net/quic/quic_connection_test.cc
index 4e82472d60576474da9ea70a213e205fe2faf955..8cdd5d82a01b7469da1a963ba9ccb45e54942f77 100644
--- a/net/quic/quic_connection_test.cc
+++ b/net/quic/quic_connection_test.cc
@@ -1983,8 +1983,9 @@ TEST_F(QuicConnectionTest, ReviveMissingPacketAfterDataPacketsThenFecPacket) {
   // Don't send missing packet 2.
   ProcessFecProtectedPacket(3, false, !kEntropyFlag);
   ProcessFecPacket(4, 1, true, kEntropyFlag, NULL);
-  // Entropy flag should be true, so entropy should not be 0.
-  EXPECT_NE(0u, QuicConnectionPeer::ReceivedEntropyHash(&connection_, 2));
+  // Ensure QUIC no longer revives entropy for lost packets.
+  EXPECT_EQ(0u, QuicConnectionPeer::ReceivedEntropyHash(&connection_, 2));
+  EXPECT_NE(0u, QuicConnectionPeer::ReceivedEntropyHash(&connection_, 4));
 }
 
 TEST_F(QuicConnectionTest, ReviveMissingPacketAfterDataPacket) {
@@ -2007,8 +2008,9 @@ TEST_F(QuicConnectionTest, ReviveMissingPacketAfterDataPackets) {
   ProcessFecProtectedPacket(3, false, kEntropyFlag);
   ProcessFecProtectedPacket(4, false, kEntropyFlag);
   ProcessFecProtectedPacket(5, true, !kEntropyFlag);
-  // Entropy flag should be true, so entropy should be 0.
-  EXPECT_NE(0u, QuicConnectionPeer::ReceivedEntropyHash(&connection_, 2));
+  // Ensure entropy is not revived for the missing packet.
+  EXPECT_EQ(0u, QuicConnectionPeer::ReceivedEntropyHash(&connection_, 2));
+  EXPECT_NE(0u, QuicConnectionPeer::ReceivedEntropyHash(&connection_, 3));
 }
 
 TEST_F(QuicConnectionTest, RTO) {