Move PrefMember and PrefChangeRegistrar to api directory.

chrome/browser/download/save_package_file_picker.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/download/save_package_file_picker.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/api/prefs/pref_member.h"
 #include "chrome/browser/download/chrome_download_manager_delegate.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/platform_util.h"
-#include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/save_page_type.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/generated_resources.h"
@@ skipping 197 matching lines @@
 
     callback_.Run(path, save_type, base::Bind(&OnSavePackageDownloadCreated));
   }
 
   delete this;
 }
 
 void SavePackageFilePicker::FileSelectionCanceled(void* unused_params) {
   delete this;
 }