Modify SetAlternateProtocol and HasAlternateProtocol behavior.

net/http/http_server_properties_impl.h

 // Copyright (c) 2012 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_HTTP_HTTP_SERVER_PROPERTIES_IMPL_H_
 #define NET_HTTP_HTTP_SERVER_PROPERTIES_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 164 matching lines @@
   struct BrokenAlternateProtocolEntry {
     HostPortPair server;
     base::TimeTicks when;
   };
   typedef std::list<BrokenAlternateProtocolEntry>
       BrokenAlternateProtocolList;
   // Map from host:port to the number of times alternate protocol has
   // been marked broken.
   typedef std::map<HostPortPair, int> BrokenAlternateProtocolMap;
 
+  // Return the iterator for |server|, or for its canonical host, or end.
+  AlternateProtocolMap::const_iterator GetAlternateProtocolIterator(
+      const HostPortPair& server);
+
   // Return the canonical host for |server|, or end if none exists.
   CanonicalHostMap::const_iterator GetCanonicalHost(HostPortPair server) const;
 
   void RemoveCanonicalHost(const HostPortPair& server);
   void ExpireBrokenAlternateProtocolMappings();
   void ScheduleBrokenAlternateProtocolMappingsExpiration();
 
   SpdyServerHostPortMap spdy_servers_map_;
   Http11ServerHostPortSet http11_servers_;
 
@@ skipping 15 matching lines @@
   double alternate_protocol_probability_threshold_;
 
   base::WeakPtrFactory<HttpServerPropertiesImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpServerPropertiesImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_IMPL_H_