[NOT FOR LANDING] Detailed loading traces

content/browser/download/save_file_resource_handler.cc

Index: content/browser/download/save_file_resource_handler.cc
diff --git a/content/browser/download/save_file_resource_handler.cc b/content/browser/download/save_file_resource_handler.cc
index faf5605710a4bc59316ec14da710919fcee4488c..9754890fab238770ff5b1a456742fec81c8e4b31 100644
--- a/content/browser/download/save_file_resource_handler.cc
+++ b/content/browser/download/save_file_resource_handler.cc
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 #include "content/browser/download/save_file_resource_handler.h"
-
+#include "base/trace_event/trace_event.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ -33,6 +33,7 @@ SaveFileResourceHandler::SaveFileResourceHandler(net::URLRequest* request,
       save_manager_(manager) {}
 
 SaveFileResourceHandler::~SaveFileResourceHandler() {
+  TRACE_EVENT0("toplevel", "SaveFileResourceHandler::~SaveFileResourceHandler");
 }
 
 bool SaveFileResourceHandler::OnRequestRedirected(