Add histograms for network activity, and total/cumulative

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
===================================================================
--- chrome/browser/io_thread.cc	(revision 150909)
+++ chrome/browser/io_thread.cc	(working copy)
@@ -21,12 +21,12 @@
 #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/load_time_stats.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"
@@ -428,7 +428,7 @@
       new net::ServerBoundCertService(
           new net::DefaultServerBoundCertStore(NULL),
           base::WorkerPool::GetTaskRunner(true)));
-  globals_->cache_stats.reset(new chrome_browser_net::CacheStats());
+  globals_->load_time_stats.reset(new chrome_browser_net::LoadTimeStats());
   net::HttpNetworkSession::Params session_params;
   session_params.host_resolver = globals_->host_resolver.get();
   session_params.cert_verifier = globals_->cert_verifier.get();