Add proxy_config component

chrome/browser/prefs/proxy_config_dictionary.h

-// Copyright (c) 2011 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_PROXY_CONFIG_DICTIONARY_H_
-#define CHROME_BROWSER_PREFS_PROXY_CONFIG_DICTIONARY_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/prefs/proxy_prefs.h"
-
-namespace base {
-class DictionaryValue;
-}
-
-// Factory and wrapper for proxy config dictionaries that are stored
-// in the user preferences. The dictionary has the following structure:
-// {
-//   mode: string,
-//   server: string,
-//   pac_url: string,
-//   bypass_list: string
-// }
-// See proxy_config_dictionary.cc for the structure of the respective strings.
-class ProxyConfigDictionary {
- public:
-  // Creates a deep copy of |dict| and leaves ownership to caller.
-  explicit ProxyConfigDictionary(const base::DictionaryValue* dict);
-  ~ProxyConfigDictionary();
-
-  bool GetMode(ProxyPrefs::ProxyMode* out) const;
-  bool GetPacUrl(std::string* out) const;
-  bool GetPacMandatory(bool* out) const;
-  bool GetProxyServer(std::string* out) const;
-  bool GetBypassList(std::string* out) const;
-  bool HasBypassList() const;
-
-  const base::DictionaryValue& GetDictionary() const;
-
-  static base::DictionaryValue* CreateDirect();
-  static base::DictionaryValue* CreateAutoDetect();
-  static base::DictionaryValue* CreatePacScript(const std::string& pac_url,
-                                          bool pac_mandatory);
-  static base::DictionaryValue* CreateFixedServers(
-      const std::string& proxy_server,
-      const std::string& bypass_list);
-  static base::DictionaryValue* CreateSystem();
- private:
-  static base::DictionaryValue* CreateDictionary(
-      ProxyPrefs::ProxyMode mode,
-      const std::string& pac_url,
-      bool pac_mandatory,
-      const std::string& proxy_server,
-      const std::string& bypass_list);
-
-  scoped_ptr<base::DictionaryValue> dict_;
-
-  DISALLOW_COPY_AND_ASSIGN(ProxyConfigDictionary);
-};
-
-#endif  // CHROME_BROWSER_PREFS_PROXY_CONFIG_DICTIONARY_H_