Revert of Landing Recent QUIC Changes.

net/quic/quic_protocol.cc

Index: net/quic/quic_protocol.cc
diff --git a/net/quic/quic_protocol.cc b/net/quic/quic_protocol.cc
index 545d8ecf4e341b8fe50e4c2afa7d2b054fbaea0e..314f0ff43b6d65c60400522b7d99ac9016c62d04 100644
--- a/net/quic/quic_protocol.cc
+++ b/net/quic/quic_protocol.cc
@@ -726,6 +726,7 @@
 
 TransmissionInfo::TransmissionInfo(
     RetransmittableFrames* retransmittable_frames,
+    QuicPacketSequenceNumber sequence_number,
     QuicSequenceNumberLength sequence_number_length)
     : retransmittable_frames(retransmittable_frames),
       sequence_number_length(sequence_number_length),
@@ -733,14 +734,17 @@
       bytes_sent(0),
       nack_count(0),
       transmission_type(NOT_RETRANSMISSION),
-      all_transmissions(NULL),
-      in_flight(false) {}
+      all_transmissions(new SequenceNumberSet),
+      in_flight(false) {
+  all_transmissions->insert(sequence_number);
+}
 
 TransmissionInfo::TransmissionInfo(
     RetransmittableFrames* retransmittable_frames,
+    QuicPacketSequenceNumber sequence_number,
     QuicSequenceNumberLength sequence_number_length,
     TransmissionType transmission_type,
-    SequenceNumberList* all_transmissions)
+    SequenceNumberSet* all_transmissions)
     : retransmittable_frames(retransmittable_frames),
       sequence_number_length(sequence_number_length),
       sent_time(QuicTime::Zero()),
@@ -748,6 +752,8 @@
       nack_count(0),
       transmission_type(transmission_type),
       all_transmissions(all_transmissions),
-      in_flight(false) {}
+      in_flight(false) {
+  all_transmissions->insert(sequence_number);
+}
 
 }  // namespace net