Remove PrefServiceSimple, replacing it with PrefService and PrefRegistrySimple.

chrome/browser/metrics/metrics_service.cc

 // 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.
 
 //------------------------------------------------------------------------------
 // Description of the life cycle of a instance of MetricsService.
 //
 //  OVERVIEW
 //
 // A MetricsService instance is typically created at application startup.  It
@@ skipping 160 matching lines @@
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/process_map.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/memory_details.h"
 #include "chrome/browser/metrics/metrics_log.h"
 #include "chrome/browser/metrics/metrics_log_serializer.h"
 #include "chrome/browser/metrics/metrics_reporting_scheduler.h"
 #include "chrome/browser/metrics/tracking_synchronizer.h"
 #include "chrome/browser/net/http_pipelining_compatibility_client.h"
 #include "chrome/browser/net/network_stats.h"
+#include "chrome/browser/prefs/pref_registry_simple.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_otr_state.h"
 #include "chrome/common/child_process_logging.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_result_codes.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 236 matching lines @@
   }
 
  private:
   ~MetricsMemoryDetails() {}
 
   base::Closure callback_;
   DISALLOW_COPY_AND_ASSIGN(MetricsMemoryDetails);
 };
 
 // static
-void MetricsService::RegisterPrefs(PrefServiceSimple* local_state) {
+void MetricsService::RegisterPrefs(PrefRegistrySimple* local_state) {
   DCHECK(IsSingleThreaded());
   local_state->RegisterStringPref(prefs::kMetricsClientID, "");
   local_state->RegisterIntegerPref(prefs::kMetricsLowEntropySource,
                                    kLowEntropySourceNotSet);
   local_state->RegisterInt64Pref(prefs::kMetricsClientIDTimestamp, 0);
   local_state->RegisterInt64Pref(prefs::kStabilityLaunchTimeSec, 0);
   local_state->RegisterInt64Pref(prefs::kStabilityLastTimestampSec, 0);
   local_state->RegisterStringPref(prefs::kStabilityStatsVersion, "");
   local_state->RegisterInt64Pref(prefs::kStabilityStatsBuildTime, 0);
   local_state->RegisterBooleanPref(prefs::kStabilityExitedCleanly, true);
@@ skipping 1491 matching lines @@
   if (local_state) {
     const PrefService::Preference* uma_pref =
         local_state->FindPreference(prefs::kMetricsReportingEnabled);
     if (uma_pref) {
       bool success = uma_pref->GetValue()->GetAsBoolean(&result);
       DCHECK(success);
     }
   }
   return result;
 }