Add proxy_config component

chrome/browser/prefs/proxy_prefs.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_PREFS_H_
-#define CHROME_BROWSER_PREFS_PROXY_PREFS_H_
-
-#include <string>
-
-namespace ProxyPrefs {
-
-// Possible types of specifying proxy settings. Do not change the order of
-// the constants, because numeric values are exposed to users.
-// If you add an enum constant, you should also add a string to
-// kProxyModeNames in the .cc file.
-enum ProxyMode {
-  // Direct connection to the network, other proxy preferences are ignored.
-  MODE_DIRECT = 0,
-
-  // Try to retrieve a PAC script from http://wpad/wpad.dat or fall back to
-  // direct connection.
-  MODE_AUTO_DETECT = 1,
-
-  // Try to retrieve a PAC script from kProxyPacURL or fall back to direct
-  // connection.
-  MODE_PAC_SCRIPT = 2,
-
-  // Use the settings specified in kProxyServer and kProxyBypassList.
-  MODE_FIXED_SERVERS = 3,
-
-  // The system's proxy settings are used, other proxy preferences are
-  // ignored.
-  MODE_SYSTEM = 4,
-
-  kModeCount
-};
-
-// State of proxy configuration.
-enum ConfigState {
-  // Configuration is from policy.
-  CONFIG_POLICY,
-  // Configuration is from extension.
-  CONFIG_EXTENSION,
-  // Configuration is not from policy or extension but still precedes others.
-  CONFIG_OTHER_PRECEDE,
-  // Configuration is from system.
-  CONFIG_SYSTEM,
-  // Configuration is recommended i.e there's a fallback configuration.
-  CONFIG_FALLBACK,
-  // Configuration is known to be not set.
-  CONFIG_UNSET,
-};
-
-// Constants for string values used to specify the proxy mode through externally
-// visible APIs, e.g. through policy or the proxy extension API.
-extern const char kDirectProxyModeName[];
-extern const char kAutoDetectProxyModeName[];
-extern const char kPacScriptProxyModeName[];
-extern const char kFixedServersProxyModeName[];
-extern const char kSystemProxyModeName[];
-
-bool IntToProxyMode(int in_value, ProxyMode* out_value);
-bool StringToProxyMode(const std::string& in_value, ProxyMode* out_value);
-// Ownership of the return value is NOT passed to the caller.
-const char* ProxyModeToString(ProxyMode mode);
-std::string ConfigStateToDebugString(ConfigState state);
-
-}  // namespace ProxyPrefs
-
-#endif  // CHROME_BROWSER_PREFS_PROXY_PREFS_H_