Create a Perspective enum to use instead of a bool is_server to improve

net/quic/quic_packet_creator.cc

Index: net/quic/quic_packet_creator.cc
diff --git a/net/quic/quic_packet_creator.cc b/net/quic/quic_packet_creator.cc
index 6fecaa89fcefdabed22cecd4de47c5e4cff66aa3..ac2a94e5908ebfc060206a4a67fa7e43520cc236 100644
--- a/net/quic/quic_packet_creator.cc
+++ b/net/quic/quic_packet_creator.cc
@@ -75,7 +75,7 @@ QuicPacketCreator::QuicPacketCreator(QuicConnectionId connection_id,
       sequence_number_(0),
       should_fec_protect_(false),
       fec_group_number_(0),
-      send_version_in_packet_(!framer->is_server()),
+      send_version_in_packet_(framer->perspective() == Perspective::IS_CLIENT),
       max_packet_length_(kDefaultMaxPacketSize),
       max_packets_per_fec_group_(kDefaultMaxPacketsPerFecGroup),
       connection_id_length_(PACKET_8BYTE_CONNECTION_ID),
@@ -452,7 +452,7 @@ SerializedPacket QuicPacketCreator::SerializeFec() {
 
 QuicEncryptedPacket* QuicPacketCreator::SerializeVersionNegotiationPacket(
     const QuicVersionVector& supported_versions) {
-  DCHECK(framer_->is_server());
+  DCHECK_EQ(Perspective::IS_SERVER, framer_->perspective());
   QuicPacketPublicHeader header;
   header.connection_id = connection_id_;
   header.reset_flag = false;