Remove PacketType from QUIC because the QUEUED type is not used and the

net/quic/quic_connection.h

Index: net/quic/quic_connection.h
diff --git a/net/quic/quic_connection.h b/net/quic/quic_connection.h
index 66681065acd6e4bab12cf13c486d3d061dbdf9e9..29605b88329d6ca8410748f5b70d99ed9497d932 100644
--- a/net/quic/quic_connection.h
+++ b/net/quic/quic_connection.h
@@ -231,12 +231,6 @@ class NET_EXPORT_PRIVATE QuicConnection
       public QuicPacketGenerator::DelegateInterface,
       public QuicSentPacketManager::NetworkChangeVisitor {
  public:
-  enum PacketType {
-    NORMAL,
-    QUEUED,
-    CONNECTION_CLOSE
-  };
-
   enum AckBundling {
     NO_ACK = 0,
     SEND_ACK = 1,
@@ -576,7 +570,7 @@ class NET_EXPORT_PRIVATE QuicConnection
     TransmissionType transmission_type;
     HasRetransmittableData retransmittable;
     IsHandshake handshake;
-    PacketType type;
+    bool is_connection_close;
     QuicByteCount length;
   };