Move some more constants and typedefs around. No behavior change.

net/quic/core/quic_types.h

Index: net/quic/core/quic_types.h
diff --git a/net/quic/core/quic_types.h b/net/quic/core/quic_types.h
index 176dca1115f26aee5f5709b9b12981c9eae52d74..a25d8686a471dd18a5391da8d0d939f6cdbc5acf 100644
--- a/net/quic/core/quic_types.h
+++ b/net/quic/core/quic_types.h
@@ -10,6 +10,7 @@
 // including quic_protocol.h.
 
 #include <stddef.h>
+#include <array>
 #include <map>
 #include <ostream>
 #include <vector>
@@ -30,8 +31,9 @@ typedef uint64_t QuicPacketCount;
 typedef uint64_t QuicPacketNumber;
 typedef uint64_t QuicPublicResetNonceProof;
 typedef uint64_t QuicStreamOffset;
-typedef std::vector<QuicTag> QuicTagVector;
+typedef std::array<char, 32> DiversificationNonce;
 typedef std::map<QuicTag, std::string> QuicTagValueMap;
+typedef std::vector<QuicTag> QuicTagVector;
 
 // A struct for functions which consume data payloads and fins.
 struct NET_EXPORT_PRIVATE QuicConsumedData {