HttpServerProperties - Added a histogram to track the AlternateProtocolServers

net/http/http_server_properties_manager.cc

 // Copyright 2014 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_manager.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/prefs/pref_service.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 866 matching lines @@
   for (SpdySettingsMap::const_iterator it = main_map.begin();
        it != main_map.end() && count < kMaxSpdySettingsHostsToPersist;
        ++it, ++count) {
     spdy_settings_map->Put(it->first, it->second);
   }
 
   AlternativeServiceMap* alternative_service_map =
       new AlternativeServiceMap(kMaxAlternateProtocolHostsToPersist);
   const AlternativeServiceMap& map =
       http_server_properties_impl_->alternative_service_map();
+  UMA_HISTOGRAM_COUNTS("Net.CountOfAlternateProtocolServers.Memory",
+                       map.size());
   count = 0;
   typedef std::map<std::string, bool> CanonicalHostPersistedMap;
   CanonicalHostPersistedMap persisted_map;
   for (AlternativeServiceMap::const_iterator it = map.begin();
        it != map.end() && count < kMaxAlternateProtocolHostsToPersist; ++it) {
     const HostPortPair& server = it->first;
     AlternativeServiceInfoVector notbroken_alternative_service_info_vector;
     for (const AlternativeServiceInfo& alternative_service_info : it->second) {
       if (!IsAlternateProtocolValid(
               alternative_service_info.alternative_service.protocol)) {
@@ skipping 280 matching lines @@
                                                        quic_servers_dict);
 }
 
 void HttpServerPropertiesManager::OnHttpServerPropertiesChanged() {
   DCHECK(pref_task_runner_->RunsTasksOnCurrentThread());
   if (!setting_prefs_)
     ScheduleUpdateCacheOnPrefThread();
 }
 
 }  // namespace net