Cleanup: Remove unneeded includes of pref_names.h

chrome/browser/first_run/first_run_win.cc

 // 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 "chrome/browser/first_run/first_run.h"
 
 #include <windows.h>
 #include <shellapi.h>
 #include <shlobj.h>
 
@@ skipping 18 matching lines @@
 #include "chrome/browser/extensions/extension_updater.h"
 #include "chrome/browser/importer/importer.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/process_singleton.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/browser/ui/views/first_run_search_engine_view.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/notification_service.h"
-#include "chrome/common/pref_names.h"
 #include "chrome/common/worker_thread_ticker.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/google_update_constants.h"
 #include "chrome/installer/util/google_update_settings.h"
 #include "chrome/installer/util/install_util.h"
 #include "chrome/installer/util/shell_util.h"
 #include "chrome/installer/util/util_constants.h"
 #include "google_update_idl.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
@@ skipping 805 matching lines @@
 
 Upgrade::TryResult Upgrade::ShowTryChromeDialog(size_t version) {
   if (version > 10000) {
     // This is a test value. We want to make sure we exercise
     // returning this early. See EarlyReturnTest test harness.
     return Upgrade::TD_NOT_NOW;
   }
   TryChromeDialog td(version);
   return td.ShowModal();
 }