Instrumenting InitializeInternal to find jank

chrome/browser/profiles/off_the_record_profile_io_data.cc

Index: chrome/browser/profiles/off_the_record_profile_io_data.cc
diff --git a/chrome/browser/profiles/off_the_record_profile_io_data.cc b/chrome/browser/profiles/off_the_record_profile_io_data.cc
index 798bea3ed294f2eb8220b8f4feaee334f3a65daf..c2dbe5ceb503d411fc3c9d4fb85eebba369aa49b 100644
--- a/chrome/browser/profiles/off_the_record_profile_io_data.cc
+++ b/chrome/browser/profiles/off_the_record_profile_io_data.cc
@@ -8,6 +8,7 @@
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
+#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/threading/worker_pool.h"
 #include "build/build_config.h"
@@ -200,6 +201,11 @@ void OffTheRecordProfileIOData::InitializeInternal(
     ProfileParams* profile_params,
     content::ProtocolHandlerMap* protocol_handlers,
     content::URLRequestInterceptorScopedVector request_interceptors) const {
+  // TODO(vadimt): Remove ScopedTracker below once crbug.com/436671 is fixed.
+  tracked_objects::ScopedTracker tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "436671 OffTheRecordProfileIOData::InitializeInternal"));
+
   net::URLRequestContext* main_context = main_request_context();
 
   IOThread* const io_thread = profile_params->io_thread;