Move some files in base to base/memory.

base/metrics/field_trial.h

 // Copyright (c) 2011 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.
 
 // FieldTrial is a class for handling details of statistical experiments
 // performed by actual users in the field (i.e., in a shipped or beta product).
 // All code is called exclusively on the UI thread currently.
 //
 // The simplest example is an experiment to see whether one of two options
 // produces "better" results across our user population.  In that scenario, UMA
@@ skipping 61 matching lines @@
 //------------------------------------------------------------------------------
 
 #ifndef BASE_METRICS_FIELD_TRIAL_H_
 #define BASE_METRICS_FIELD_TRIAL_H_
 #pragma once
 
 #include <map>
 #include <string>
 
 #include "base/gtest_prod_util.h"
-#include "base/ref_counted.h"
+#include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "base/time.h"
 
 namespace base {
 
 class FieldTrialList;
 
 class FieldTrial : public RefCounted<FieldTrial> {
  public:
   typedef int Probability;  // Probability type for being selected in a trial.
@@ skipping 194 matching lines @@
   base::Lock lock_;
   RegistrationList registered_;
 
   DISALLOW_COPY_AND_ASSIGN(FieldTrialList);
 };
 
 }  // namespace base
 
 #endif  // BASE_METRICS_FIELD_TRIAL_H_