Revert of Delete base/prefs and update callers to use components.

components/prefs/pref_service_factory.h

 // Copyright 2013 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.
 
-#ifndef COMPONENTS_PREFS_PREF_SERVICE_FACTORY_H_
-#define COMPONENTS_PREFS_PREF_SERVICE_FACTORY_H_
+#ifndef BASE_PREFS_PREF_SERVICE_FACTORY_H_
+#define BASE_PREFS_PREF_SERVICE_FACTORY_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "components/prefs/base_prefs_export.h"
 #include "components/prefs/persistent_pref_store.h"
 #include "components/prefs/pref_registry.h"
 #include "components/prefs/pref_store.h"
 
 class PrefService;
 
 namespace base {
+
 class FilePath;
 class SequencedTaskRunner;
-}
 
 // A class that allows convenient building of PrefService.
-class COMPONENTS_PREFS_EXPORT PrefServiceFactory {
+class BASE_PREFS_EXPORT PrefServiceFactory {
  public:
   PrefServiceFactory();
   virtual ~PrefServiceFactory();
 
   // Functions for setting the various parameters of the PrefService to build.
   void set_managed_prefs(const scoped_refptr<PrefStore>& managed_prefs) {
     managed_prefs_ = managed_prefs;
   }
   void set_supervised_user_prefs(
       const scoped_refptr<PrefStore>& supervised_user_prefs) {
@@ skipping 44 matching lines @@
 
   base::Callback<void(PersistentPrefStore::PrefReadError)> read_error_callback_;
 
   // Defaults to false.
   bool async_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrefServiceFactory);
 };
 
-#endif  // COMPONENTS_PREFS_PREF_SERVICE_FACTORY_H_
+}  // namespace base
+
+#endif  // BASE_PREFS_PREF_SERVICE_FACTORY_H_