Make URLRequestThrottlerManager a member of URLRequestContext.

chrome/browser/net/connection_tester.cc

Index: chrome/browser/net/connection_tester.cc
diff --git a/chrome/browser/net/connection_tester.cc b/chrome/browser/net/connection_tester.cc
index 453c901d55d31d33bbd1d69cf32cf0beb2da169d..d4c9efe08bed7694e31c17f9abb57fadb3d225bb 100644
--- a/chrome/browser/net/connection_tester.cc
+++ b/chrome/browser/net/connection_tester.cc
@@ -32,6 +32,7 @@
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_storage.h"
+#include "net/url_request/url_request_throttler_manager.h"
 
 #if !defined(OS_ANDROID)
 #include "chrome/browser/importer/firefox_proxy_settings.h"
@@ -79,6 +80,7 @@ class ExperimentURLRequestContext : public net::URLRequestContext {
     storage_.set_http_auth_handler_factory(
         net::HttpAuthHandlerFactory::CreateDefault(host_resolver()));
     storage_.set_http_server_properties(new net::HttpServerPropertiesImpl);
+    storage_.set_throttler_manager(new net::URLRequestThrottlerManager);
 
     net::HttpNetworkSession::Params session_params;
     session_params.host_resolver = host_resolver();