Add and persist a new field in AlternativeServiceInfo to list QUIC verisons advertised

net/http/http_server_properties.h

Index: net/http/http_server_properties.h
diff --git a/net/http/http_server_properties.h b/net/http/http_server_properties.h
index fc19d24e18b103a384f34507ddf30a277dd5582c..847123fd27ec321effef7f22c34c12355af07a0f 100644
--- a/net/http/http_server_properties.h
+++ b/net/http/http_server_properties.h
@@ -20,6 +20,7 @@
 #include "net/base/net_export.h"
 #include "net/quic/core/quic_bandwidth.h"
 #include "net/quic/core/quic_server_id.h"
+#include "net/quic/core/quic_versions.h"
 #include "net/socket/next_proto.h"
 #include "net/spdy/core/spdy_framer.h"  // TODO(willchan): Reconsider this.
 #include "net/spdy/core/spdy_protocol.h"
@@ -115,24 +116,20 @@ NET_EXPORT_PRIVATE std::ostream& operator<<(
     const AlternativeService& alternative_service);
 
 struct NET_EXPORT AlternativeServiceInfo {
-  AlternativeServiceInfo() : alternative_service() {}
+  AlternativeServiceInfo();
+  ~AlternativeServiceInfo();
 
   AlternativeServiceInfo(const AlternativeService& alternative_service,
-                         base::Time expiration)
-      : alternative_service(alternative_service),
-        expiration(expiration) {}
-
-  AlternativeServiceInfo(NextProto protocol,
-                         const std::string& host,
-                         uint16_t port,
-                         base::Time expiration)
-      : alternative_service(protocol, host, port), expiration(expiration) {}
+                         base::Time expiration);
 
   AlternativeServiceInfo(
-      const AlternativeServiceInfo& alternative_service_info) = default;
+      const AlternativeServiceInfo& alternative_service_info);
+
   AlternativeServiceInfo& operator=(
-      const AlternativeServiceInfo& alternative_service_info) = default;
+      const AlternativeServiceInfo& alternative_service_info);
 
+  // TODO(zhongyi): add equality check on |advertised_versions| once it
+  // is persisted to disk.

[Ryan Hamilton, 2017/05/25 22:01:45]

I'm not sure I understand why we can't do this now.

[Zhongyi Shi, 2017/06/06 22:04:52]

Done.
Ah, we definitely can do this together. I was thinking make split those changes
in smaller CLs. But yeah, all those changes together make more sense. 

   bool operator==(const AlternativeServiceInfo& other) const {
     return alternative_service == other.alternative_service &&
            expiration == other.expiration;
@@ -146,6 +143,7 @@ struct NET_EXPORT AlternativeServiceInfo {
 
   AlternativeService alternative_service;
   base::Time expiration;
+  QuicVersionVector advertised_versions;
 };
 
 struct NET_EXPORT SupportsQuic {