Switch to standard integer types in chrome/browser/, part 2 of 4.

chrome/browser/metrics/field_trial_synchronizer.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_METRICS_FIELD_TRIAL_SYNCHRONIZER_H_
 #define CHROME_BROWSER_METRICS_FIELD_TRIAL_SYNCHRONIZER_H_
 
 #include <string>
 #include <vector>
 
-#include "base/basictypes.h"
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/field_trial.h"
 
 // This class is used by the browser process to communicate FieldTrial setting
 // (field trial name and group) to any previously started renderers.
 //
 // This class registers itself as an observer of FieldTrialList. FieldTrialList
 // notifies this class by calling it's OnFieldTrialGroupFinalized method when a
 // group is selected (finalized) for a FieldTrial and OnFieldTrialGroupFinalized
 // method sends the FieldTrial's name and the group to all renderer processes.
@@ skipping 27 matching lines @@
                                   const std::string& group_name) override;
 
  private:
   friend class base::RefCountedThreadSafe<FieldTrialSynchronizer>;
   ~FieldTrialSynchronizer() override;
 
   DISALLOW_COPY_AND_ASSIGN(FieldTrialSynchronizer);
 };
 
 #endif  // CHROME_BROWSER_METRICS_FIELD_TRIAL_SYNCHRONIZER_H_