- Add a priority field to QuicCryptoServerConfig configs and used it as

net/quic/crypto/crypto_server_config_protobuf.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_CRYPTO_CRYPTO_SERVER_CONFIG_PROTOBUF_H_
 #define NET_QUIC_CRYPTO_CRYPTO_SERVER_CONFIG_PROTOBUF_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 67 matching lines @@
   }
 
   int64 primary_time() const {
     return primary_time_;
   }
 
   void set_primary_time(int64 primary_time) {
     primary_time_ = primary_time;
   }
 
+  bool has_priority() const {
+    return priority_ > 0;
+  }
+
+  int64 priority() const {
+    return priority_;
+  }
+
+  void set_priority(int64 priority) {
+    priority_ = priority;
+  }
+
  private:
   std::vector<PrivateKey*> keys_;
 
   // config_ is a serialised config in QUIC wire format.
   std::string config_;
 
   // primary_time_ contains a UNIX epoch seconds value that indicates when this
   // config should become primary.
   int64 primary_time_;
+
+  // Relative priority of this config vs other configs with the same
+  // primary time.  For use as a secondary sort key when selecting the
+  // primary config.
+  uint64 priority_;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_CRYPTO_SERVER_CONFIG_PROTOBUF_H_