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base/metrics/field_trial.cc

Index: base/metrics/field_trial.cc
diff --git a/base/metrics/field_trial.cc b/base/metrics/field_trial.cc
index fceccde272ab8f0029807f5fa1fa5c9c8e3b9910..79578d8e231873b884d68cad22516d1af7a54379 100644
--- a/base/metrics/field_trial.cc
+++ b/base/metrics/field_trial.cc
@@ -2,11 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/metrics/field_trial.h"
+#include <stdbool.h>
+#include <stddef.h>
+#include <map>
+#include <string>
+#include <utility>
 
 #include "base/logging.h"
+#include "base/metrics/field_trial.h"
 #include "base/rand_util.h"
 #include "base/stringprintf.h"
+#include "base/synchronization/lock.h"
+#include "base/time.h"
 #include "base/utf_string_conversions.h"
 
 namespace base {