Move remaining non-test, non-Chrome-specific Prefs code to base/prefs/.

chrome/browser/prefs/pref_registry_simple.h

-// 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.
-
-#ifndef CHROME_BROWSER_PREFS_PREF_REGISTRY_SIMPLE_H_
-#define CHROME_BROWSER_PREFS_PREF_REGISTRY_SIMPLE_H_
-
-#include <string>
-
-#include "chrome/browser/prefs/pref_registry.h"
-
-namespace base {
-class DictionaryValue;
-class FilePath;
-class ListValue;
-}
-
-// A simple implementation of PrefRegistry.
-class PrefRegistrySimple : public PrefRegistry {
- public:
-  PrefRegistrySimple();
-
-  void RegisterBooleanPref(const char* path, bool default_value);
-  void RegisterIntegerPref(const char* path, int default_value);
-  void RegisterDoublePref(const char* path, double default_value);
-  void RegisterStringPref(const char* path, const std::string& default_value);
-  void RegisterFilePathPref(const char* path,
-                            const base::FilePath& default_value);
-  void RegisterListPref(const char* path);
-  void RegisterDictionaryPref(const char* path);
-  void RegisterListPref(const char* path, base::ListValue* default_value);
-  void RegisterDictionaryPref(const char* path,
-                              base::DictionaryValue* default_value);
-  void RegisterInt64Pref(const char* path,
-                         int64 default_value);
-
- private:
-  virtual ~PrefRegistrySimple();
-
-  DISALLOW_COPY_AND_ASSIGN(PrefRegistrySimple);
-};
-
-#endif  // CHROME_BROWSER_PREFS_PREF_REGISTRY_SIMPLE_H_