Update chrome for new prefs location.

chrome/browser/background/background_mode_manager_mac.mm

 // 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.
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/mac/mac_util.h"
-#include "base/prefs/pref_service.h"
 #include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/prefs/pref_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using content::BrowserThread;
 
 namespace {
 void SetUserRemovedLoginItemPrefOnUIThread() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   PrefService* service = g_browser_process->local_state();
   service->SetBoolean(prefs::kUserRemovedLoginItem, true);
@@ skipping 127 matching lines @@
 
 void BackgroundModeManager::DisplayClientInstalledNotification(
     const base::string16& name) {
   // TODO(atwilson): Display a platform-appropriate notification here.
   // http://crbug.com/74970
 }
 
 base::string16 BackgroundModeManager::GetPreferencesMenuLabel() {
   return l10n_util::GetStringUTF16(IDS_OPTIONS);
 }