Make URLRequestThrottlerManager a member of URLRequestContext.

content/shell/shell_url_request_context_getter.cc

Index: content/shell/shell_url_request_context_getter.cc
diff --git a/content/shell/shell_url_request_context_getter.cc b/content/shell/shell_url_request_context_getter.cc
index 427000600bda48133a6e39d13b35caa5395fd911..680105a8fe79f8c7274a84881ee281ed8a850019 100644
--- a/content/shell/shell_url_request_context_getter.cc
+++ b/content/shell/shell_url_request_context_getter.cc
@@ -21,6 +21,7 @@
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_storage.h"
 #include "net/url_request/url_request_job_factory.h"
+#include "net/url_request/url_request_throttler_manager.h"
 
 namespace content {
 
@@ -56,6 +57,7 @@ net::URLRequestContext* ShellURLRequestContextGetter::GetURLRequestContext() {
     storage_->set_cookie_store(new net::CookieMonster(NULL, NULL));
     storage_->set_server_bound_cert_service(new net::ServerBoundCertService(
         new net::DefaultServerBoundCertStore(NULL)));
+    storage_->set_throttler_manager(new net::URLRequestThrottlerManager);
     url_request_context_->set_accept_language("en-us,en");
     url_request_context_->set_accept_charset("iso-8859-1,*,utf-8");