Reverting instrumentations

chrome/browser/extensions/api/preference/preference_api.cc

Index: chrome/browser/extensions/api/preference/preference_api.cc
diff --git a/chrome/browser/extensions/api/preference/preference_api.cc b/chrome/browser/extensions/api/preference/preference_api.cc
index b5e6716b9dc4fd8fb9383140ac77390423134529..1c6a7298d5425f72490b2083c9ffb32acc988c7f 100644
--- a/chrome/browser/extensions/api/preference/preference_api.cc
+++ b/chrome/browser/extensions/api/preference/preference_api.cc
@@ -10,7 +10,6 @@
 #include "base/lazy_instance.h"
 #include "base/memory/singleton.h"
 #include "base/prefs/pref_service.h"
-#include "base/profiler/scoped_profile.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
@@ -450,10 +449,6 @@ PreferenceAPI* PreferenceAPI::Get(content::BrowserContext* context) {
 }
 
 void PreferenceAPI::OnListenerAdded(const EventListenerInfo& details) {
-  // TODO(vadimt): Remove ScopedProfile below once crbug.com/417106 is fixed.
-  tracked_objects::ScopedProfile tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION("PreferenceAPI::OnListenerAdded"));
-
   preference_event_router_.reset(new PreferenceEventRouter(profile_));
   EventRouter::Get(profile_)->UnregisterObserver(this);
 }