Remove PrefServiceSimple, replacing it with PrefService and PrefRegistrySimple.

chrome/browser/chromeos/login/wizard_controller.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.
 
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 
 #include <signal.h>
 #include <stdlib.h>
 #include <sys/types.h>
 
@@ skipping 367 matching lines @@
 
 void WizardController::OnSessionStart() {
   FOR_EACH_OBSERVER(Observer, observer_list_, OnSessionStart());
 }
 
 void WizardController::SkipUpdateEnrollAfterEula() {
   skip_update_enroll_after_eula_ = true;
 }
 
 // static
-void WizardController::RegisterPrefs(PrefServiceSimple* local_state) {
+void WizardController::RegisterPrefs(PrefRegistrarSimple* local_state) {
   local_state->RegisterBooleanPref(kOobeComplete, false);
   local_state->RegisterIntegerPref(kDeviceRegistered, -1);
   local_state->RegisterBooleanPref(kEulaAccepted, false);
   local_state->RegisterStringPref(kInitialLocale, "en-US");
-  // Check if the pref is already registered in case
-  // Preferences::RegisterUserPrefs runs before this code in the future.
-  if (local_state->FindPreference(prefs::kSpokenFeedbackEnabled) == NULL) {
-    local_state->RegisterBooleanPref(prefs::kSpokenFeedbackEnabled, false);
-  }
-  if (local_state->FindPreference(prefs::kHighContrastEnabled) == NULL) {
-    local_state->RegisterBooleanPref(prefs::kHighContrastEnabled, false);
-  }
-  if (local_state->FindPreference(prefs::kVirtualKeyboardEnabled) == NULL) {
-    local_state->RegisterBooleanPref(prefs::kVirtualKeyboardEnabled, false);
-  }
+  local_state->RegisterBooleanPref(prefs::kSpokenFeedbackEnabled, false);
+  local_state->RegisterBooleanPref(prefs::kHighContrastEnabled, false);
+  local_state->RegisterBooleanPref(prefs::kVirtualKeyboardEnabled, false);
   local_state->RegisterBooleanPref(prefs::kOwnerPrimaryMouseButtonRight, false);
   local_state->RegisterBooleanPref(prefs::kOwnerTapToClickEnabled, true);
   local_state->RegisterBooleanPref(prefs::kFactoryResetRequested, false);
   local_state->RegisterStringPref(prefs::kRLZBrand, std::string());
   local_state->RegisterBooleanPref(prefs::kRLZDisabled, false);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // WizardController, ExitHandlers:
 void WizardController::OnNetworkConnected() {
@@ skipping 407 matching lines @@
   return zero_delay_enabled_;
 }
 
 // static
 void WizardController::SetZeroDelays() {
   kShowDelayMs = 0;
   zero_delay_enabled_ = true;
 }
 
 }  // namespace chromeos