Introduce //components/user_prefs, use to eliminate c/b/prefs dependency in Autofill.

chrome/browser/themes/theme_service_factory.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/themes/theme_service_factory.h"
 
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/common/pref_names.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 
 #if defined(TOOLKIT_GTK)
 #include "chrome/browser/ui/gtk/gtk_theme_service.h"
 #endif
 
 // static
 ThemeService* ThemeServiceFactory::GetForProfile(Profile* profile) {
   return static_cast<ThemeService*>(
       GetInstance()->GetServiceForProfile(profile, true));
 }
@@ skipping 49 matching lines @@
   registry->RegisterDictionaryPref(prefs::kCurrentThemeColors,
                                    PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterDictionaryPref(prefs::kCurrentThemeTints,
                                    PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterDictionaryPref(prefs::kCurrentThemeDisplayProperties,
                                    PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 bool ThemeServiceFactory::ServiceRedirectedInIncognito() const {
   return true;
-}
+}