Update components for new prefs location.

components/metrics/metrics_state_manager_unittest.cc

 // Copyright 2014 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.
 
 #include "components/metrics/metrics_state_manager.h"
 
 #include <ctype.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
-#include "base/prefs/testing_pref_service.h"
 #include "components/metrics/client_info.h"
 #include "components/metrics/metrics_pref_names.h"
 #include "components/metrics/metrics_service.h"
 #include "components/metrics/metrics_switches.h"
+#include "components/prefs/testing_pref_service.h"
 #include "components/variations/caching_permuted_entropy_provider.h"
 #include "components/variations/pref_names.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace metrics {
 
 class MetricsStateManagerTest : public testing::Test {
  public:
   MetricsStateManagerTest() : is_metrics_reporting_enabled_(false) {
     MetricsService::RegisterPrefs(prefs_.registry());
@@ skipping 346 matching lines @@
 
     // The metrics-reporting-enabled date will be reset to Now().
     EXPECT_GE(prefs_.GetInt64(prefs::kMetricsReportingEnabledTimestamp),
               previous_client_info->reporting_enabled_date);
 
     stored_client_info_backup_.reset();
   }
 }
 
 }  // namespace metrics