Make URLRequestThrottlerManager a member of URLRequestContext.

chrome/service/net/service_url_request_context.cc

Index: chrome/service/net/service_url_request_context.cc
diff --git a/chrome/service/net/service_url_request_context.cc b/chrome/service/net/service_url_request_context.cc
index 4fb23854ce66ee15c883a433ef9f5e274492c251..955d9d4c05ce0e47350f619787cfb33c5482c76c 100644
--- a/chrome/service/net/service_url_request_context.cc
+++ b/chrome/service/net/service_url_request_context.cc
@@ -25,6 +25,7 @@
 #include "net/http/http_server_properties_impl.h"
 #include "net/proxy/proxy_config_service.h"
 #include "net/proxy/proxy_service.h"
+#include "net/url_request/url_request_throttler_manager.h"
 
 namespace {
 // Copied from webkit/glue/user_agent.cc. We don't want to pull in a dependency
@@ -122,6 +123,7 @@ ServiceURLRequestContext::ServiceURLRequestContext(
   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();