Adding histograms showing fraction of page load times

chrome/browser/io_thread.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 "chrome/browser/io_thread.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/debug/leak_tracker.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "base/threading/thread.h"
 #include "base/threading/worker_pool.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
+#include "chrome/browser/net/cache_stats.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/chrome_network_delegate.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/net/connect_interceptor.h"
 #include "chrome/browser/net/http_pipelining_compatibility_client.h"
 #include "chrome/browser/net/pref_proxy_config_tracker.h"
 #include "chrome/browser/net/proxy_service_factory.h"
 #include "chrome/browser/net/sdch_dictionary_fetcher.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 361 matching lines @@
       new LoggingNetworkChangeObserver(net_log_));
 
   globals_->extension_event_router_forwarder =
       extension_event_router_forwarder_;
   ChromeNetworkDelegate* network_delegate = new ChromeNetworkDelegate(
       extension_event_router_forwarder_,
       NULL,
       NULL,
       NULL,
       NULL,
-      &system_enable_referrers_);
+      &system_enable_referrers_,
+      NULL);
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableExtensionsHttpThrottling)) {
     network_delegate->NeverThrottleRequests();
   }
   globals_->system_network_delegate.reset(network_delegate);
   globals_->host_resolver.reset(
       CreateGlobalHostResolver(net_log_));
   globals_->cert_verifier.reset(net::CertVerifier::CreateDefault());
   globals_->transport_security_state.reset(new net::TransportSecurityState());
   globals_->ssl_config_service = GetSSLConfigService();
   globals_->http_auth_handler_factory.reset(CreateDefaultAuthHandlerFactory(
       globals_->host_resolver.get()));
   globals_->http_server_properties.reset(new net::HttpServerPropertiesImpl);
   // For the ProxyScriptFetcher, we use a direct ProxyService.
   globals_->proxy_script_fetcher_proxy_service.reset(
       net::ProxyService::CreateDirectWithNetLog(net_log_));
   // In-memory cookie store.
   globals_->system_cookie_store = new net::CookieMonster(NULL, NULL);
   // In-memory server bound cert store.
   globals_->system_server_bound_cert_service.reset(
       new net::ServerBoundCertService(
           new net::DefaultServerBoundCertStore(NULL),
           base::WorkerPool::GetTaskRunner(true)));
+  globals_->cache_stats.reset(new chrome_browser_net::CacheStats());
   net::HttpNetworkSession::Params session_params;
   session_params.host_resolver = globals_->host_resolver.get();
   session_params.cert_verifier = globals_->cert_verifier.get();
   session_params.server_bound_cert_service =
       globals_->system_server_bound_cert_service.get();
   session_params.transport_security_state =
       globals_->transport_security_state.get();
   session_params.proxy_service =
       globals_->proxy_script_fetcher_proxy_service.get();
   session_params.http_auth_handler_factory =
@@ skipping 185 matching lines @@
       new net::HttpNetworkLayer(
           new net::HttpNetworkSession(system_params)));
   globals_->system_ftp_transaction_factory.reset(
       new net::FtpNetworkLayer(globals_->host_resolver.get()));
   globals_->system_request_context.reset(
       ConstructSystemRequestContext(globals_, net_log_));
 
   sdch_manager_->set_sdch_fetcher(
       new SdchDictionaryFetcher(system_url_request_context_getter_.get()));
 }