Clear cached QUIC network stats when a QUIC handshake fails.

net/http/http_server_properties_impl.cc

 // 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.
 
 #include "net/http/http_server_properties_impl.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
@@ skipping 547 matching lines @@
     last_quic_address_ = address;
   }
 }
 
 void HttpServerPropertiesImpl::SetServerNetworkStats(
     const url::SchemeHostPort& server,
     ServerNetworkStats stats) {
   server_network_stats_map_.Put(server, stats);
 }
 
+void HttpServerPropertiesImpl::ClearServerNetworkStats(
+    const url::SchemeHostPort& server) {
+  ServerNetworkStatsMap::iterator it = server_network_stats_map_.Get(server);
+  if (it != server_network_stats_map_.end()) {
+    server_network_stats_map_.Erase(it);
+  }
+}
+
 const ServerNetworkStats* HttpServerPropertiesImpl::GetServerNetworkStats(
     const url::SchemeHostPort& server) {
   ServerNetworkStatsMap::iterator it = server_network_stats_map_.Get(server);
   if (it == server_network_stats_map_.end()) {
     return NULL;
   }
   return &it->second;
 }
 
 const ServerNetworkStatsMap&
@@ skipping 165 matching lines @@
   base::TimeDelta delay = when > now ? when - now : base::TimeDelta();
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE,
       base::Bind(
           &HttpServerPropertiesImpl::ExpireBrokenAlternateProtocolMappings,
           weak_ptr_factory_.GetWeakPtr()),
       delay);
 }
 
 }  // namespace net