diff --git a/base/metrics/user_metrics.cc b/base/metrics/user_metrics.cc
index cb55bfc28d3895..ab1ff855961b30 100644
--- a/base/metrics/user_metrics.cc
+++ b/base/metrics/user_metrics.cc
@@ -27,35 +27,20 @@ LazyInstance<scoped_refptr<SingleThreadTaskRunner>>::DestructorAtExit
 }  // namespace
 
 void RecordAction(const UserMetricsAction& action) {
-  RecordComputedAction(action.str_);
+  //RecordComputedAction(action.str_);
 }
 
 void RecordComputedAction(const std::string& action) {
-  RecordComputedActionAt(action, TimeTicks::Now());
+  //RecordComputedActionAt(action, TimeTicks::Now());
 }
 
 void RecordComputedActionSince(const std::string& action,
                                TimeDelta time_since) {
-  RecordComputedActionAt(action, TimeTicks::Now() - time_since);
+  //RecordComputedActionAt(action, TimeTicks::Now() - time_since);
 }
 
 void RecordComputedActionAt(const std::string& action, TimeTicks action_time) {
-  TRACE_EVENT_INSTANT1("ui", "UserEvent", TRACE_EVENT_SCOPE_GLOBAL, "action",
-                       action);
-  if (!g_task_runner.Get()) {
-    DCHECK(g_callbacks.Get().empty());
-    return;
-  }
-
-  if (!g_task_runner.Get()->BelongsToCurrentThread()) {
-    g_task_runner.Get()->PostTask(
-        FROM_HERE, BindOnce(&RecordComputedActionAt, action, action_time));
-    return;
-  }
-
-  for (const ActionCallback& callback : g_callbacks.Get()) {
-    callback.Run(action, action_time);
-  }
+  ;
 }
 
 void AddActionCallback(const ActionCallback& callback) {