Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/ui/webui/print_preview/sticky_settings.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/ui/webui/print_preview/sticky_settings.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/values.h"
+#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "printing/page_size_margins.h"
 
 namespace printing {
 
 const char kSettingSavePath[] = "savePath";
 const char kSettingAppState[] = "appState";
@@ skipping 31 matching lines @@
 
     FilePath::StringType save_path;
     if (value->GetString(printing::kSettingSavePath, &save_path))
       save_path_.reset(new FilePath(save_path));
     std::string buffer;
     if (value->GetString(printing::kSettingAppState, &buffer))
       printer_app_state_.reset(new std::string(buffer));
   }
 }
 
-void StickySettings::RegisterUserPrefs(PrefServiceSyncable* prefs) {
-  prefs->RegisterDictionaryPref(prefs::kPrintPreviewStickySettings,
-                                PrefServiceSyncable::UNSYNCABLE_PREF);
+void StickySettings::RegisterUserPrefs(PrefRegistrySyncable* registry) {
+  registry->RegisterDictionaryPref(prefs::kPrintPreviewStickySettings,
+                                   PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 std::string* StickySettings::printer_app_state() {
   return printer_app_state_.get();
 }
 
 FilePath* StickySettings::save_path() {
   return save_path_.get();
 }
 
 } // namespace printing