Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/download/chrome_download_manager_delegate.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/chrome_download_manager_delegate.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 465 matching lines @@
 #else
   return false;
 #endif
 }
 
 void ChromeDownloadManagerDelegate::GetSaveDir(BrowserContext* browser_context,
                                                FilePath* website_save_dir,
                                                FilePath* download_save_dir,
                                                bool* skip_dir_check) {
   Profile* profile = Profile::FromBrowserContext(browser_context);
-  PrefService* prefs = profile->GetPrefs();
+  PrefServiceSyncable* prefs = profile->GetPrefs();
 
   // Check whether the preference has the preferred directory for saving file.
   // If not, initialize it with default directory.
   if (!prefs->FindPreference(prefs::kSaveFileDefaultDirectory)) {
     DCHECK(prefs->FindPreference(prefs::kDownloadDefaultDirectory));
     FilePath default_save_path = prefs->GetFilePath(
         prefs::kDownloadDefaultDirectory);
     prefs->RegisterFilePathPref(prefs::kSaveFileDefaultDirectory,
                                 default_save_path,
-                                PrefService::UNSYNCABLE_PREF);
+                                PrefServiceSyncable::UNSYNCABLE_PREF);
   }
 
   // Get the directory from preference.
   *website_save_dir = prefs->GetFilePath(prefs::kSaveFileDefaultDirectory);
   DCHECK(!website_save_dir->empty());
 
   *download_save_dir = prefs->GetFilePath(prefs::kDownloadDefaultDirectory);
 
   *skip_dir_check = false;
 #if defined(OS_CHROMEOS)
@@ skipping 346 matching lines @@
     // TODO(asanka): This logic is a hack. DownloadFilePicker should give us a
     //               directory to persist. Or perhaps, if the Drive path
     //               substitution logic is moved here, then we would have a
     //               persistable path after the DownloadFilePicker is done.
     if (disposition == DownloadItem::TARGET_DISPOSITION_PROMPT &&
         !download->IsTemporary())
       last_download_path_ = target_path.DirName();
   }
   callback.Run(target_path, disposition, danger_type, intermediate_path);
 }