[NOT FOR LANDING] Detailed loading traces

chrome/browser/net/safe_search_util.cc

Index: chrome/browser/net/safe_search_util.cc
diff --git a/chrome/browser/net/safe_search_util.cc b/chrome/browser/net/safe_search_util.cc
index 17bda6605a805c9583e7d8aeaf551940cfb5e296..fe535618bbd1a9865cc055f3257cbce8a81f7af0 100644
--- a/chrome/browser/net/safe_search_util.cc
+++ b/chrome/browser/net/safe_search_util.cc
@@ -8,6 +8,7 @@
 #include <utility>
 #include <vector>
 
+#include "base/trace_event/trace_event.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
@@ -72,6 +73,8 @@ namespace safe_search_util {
 // enforces that the SafeSearch query parameters are set to active.
 // Sets the query part of |new_url| with the new value of the parameters.
 void ForceGoogleSafeSearch(const net::URLRequest* request, GURL* new_url) {
+  TRACE_EVENT0("toplevel", "SafeSearchUtil ForceGoogleSafeSearch");
+
   ++g_force_google_safe_search_count_for_test;
 
   if (!google_util::IsGoogleSearchUrl(request->url()) &&