Anti-DDoS enhancements: Log to net log, UMA stats, improved policy.

chrome/browser/browser_main.cc

Index: chrome/browser/browser_main.cc
diff --git a/chrome/browser/browser_main.cc b/chrome/browser/browser_main.cc
index 06ad5f593ce34459b3965e9bdde0e4d2df41acde..d0b5134ea8db723a27531834bc21ecba8f244595 100644
--- a/chrome/browser/browser_main.cc
+++ b/chrome/browser/browser_main.cc
@@ -52,6 +52,7 @@
 #include "chrome/browser/metrics/thread_watcher.h"
 #include "chrome/browser/net/chrome_dns_cert_provenance_checker.h"
 #include "chrome/browser/net/chrome_dns_cert_provenance_checker_factory.h"
+#include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/predictor_api.h"
 #include "chrome/browser/net/sdch_dictionary_fetcher.h"
 #include "chrome/browser/net/websocket_experiment/websocket_experiment_runner.h"
@@ -203,6 +204,10 @@
 #include "views/touchui/touch_factory.h"
 #endif
 
+namespace net {
+class NetLog;
+}

[yzshen1, 2011/05/25 03:49:06]

Please add "// namespace net"

[Jói, 2011/05/25 14:30:35]

Done.

+
 // BrowserMainParts ------------------------------------------------------------
 
 BrowserMainParts::BrowserMainParts(const MainFunctionParams& parameters)
@@ -721,10 +726,18 @@ void InitializeNetworkOptions(const CommandLine& parsed_command_line) {
     net::SpdySessionPool::set_max_sessions_per_domain(value);
   }
 
+  SetDnsCertProvenanceCheckerFactory(CreateChromeDnsCertProvenanceChecker);
+}
+
+void InitializeURLRequestThrottlerManager(net::NetLog* net_log) {
   net::URLRequestThrottlerManager::GetInstance()->set_enable_thread_checks(
       true);
 
-  SetDnsCertProvenanceCheckerFactory(CreateChromeDnsCertProvenanceChecker);
+  // TODO(joi): Passing the NetLog here is temporary; once I switch the
+  // URLRequestThrottlerManager to be part of the URLRequestContext it will
+  // come from there. Doing it this way for now (2011/5/12) to try to fail
+  // fast in case A/B experiment gives unexpected results.
+  net::URLRequestThrottlerManager::GetInstance()->set_net_log(net_log);
 }
 
 // Creates key child threads. We need to do this explicitly since
@@ -1391,6 +1404,7 @@ int BrowserMain(const MainFunctionParams& parameters) {
                                       CommandLine::ForCurrentProcess());
 
   InitializeNetworkOptions(parsed_command_line);
+  InitializeURLRequestThrottlerManager(browser_process->net_log());
 
   // Initialize histogram synchronizer system. This is a singleton and is used
   // for posting tasks via NewRunnableMethod. Its deleted when it goes out of