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

net/quic/quic_protocol.h

Index: net/quic/quic_protocol.h
diff --git a/net/quic/quic_protocol.h b/net/quic/quic_protocol.h
index 398a5fd4f20d69ae45cb7945ac23876432aa80ae..d851f1b1e7d0d1ef67deae2162c7e9c6be64fa3c 100644
--- a/net/quic/quic_protocol.h
+++ b/net/quic/quic_protocol.h
@@ -193,6 +193,11 @@ enum IsHandshake {
   IS_HANDSHAKE
 };
 
+enum class Perspective { IS_SERVER, IS_CLIENT };
+
+NET_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
+                                            const Perspective& s);
+
 // Indicates FEC protection level for data being written.
 enum FecProtection {
   MUST_FEC_PROTECT,  // Callee must FEC protect this data.