Add proxy_config component

chrome/browser/prefs/proxy_prefs.cc

-// Copyright (c) 2010 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/prefs/proxy_prefs.h"
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-namespace ProxyPrefs {
-
-namespace {
-
-// These names are exposed to the proxy extension API. They must be in sync
-// with the constants of ProxyPrefs.
-const char* kProxyModeNames[] = { kDirectProxyModeName,
-                                  kAutoDetectProxyModeName,
-                                  kPacScriptProxyModeName,
-                                  kFixedServersProxyModeName,
-                                  kSystemProxyModeName };
-
-static_assert(arraysize(kProxyModeNames) == kModeCount,
-              "kProxyModeNames must have kModeCount elements");
-
-}  // namespace
-
-const char kDirectProxyModeName[] = "direct";
-const char kAutoDetectProxyModeName[] = "auto_detect";
-const char kPacScriptProxyModeName[] = "pac_script";
-const char kFixedServersProxyModeName[] = "fixed_servers";
-const char kSystemProxyModeName[] = "system";
-
-bool IntToProxyMode(int in_value, ProxyMode* out_value) {
-  DCHECK(out_value);
-  if (in_value < 0 || in_value >= kModeCount)
-    return false;
-  *out_value = static_cast<ProxyMode>(in_value);
-  return true;
-}
-
-bool StringToProxyMode(const std::string& in_value, ProxyMode* out_value) {
-  DCHECK(out_value);
-  for (int i = 0; i < kModeCount; i++) {
-    if (in_value == kProxyModeNames[i])
-      return IntToProxyMode(i, out_value);
-  }
-  return false;
-}
-
-const char* ProxyModeToString(ProxyMode mode) {
-  return kProxyModeNames[mode];
-}
-
-std::string ConfigStateToDebugString(ConfigState state) {
-  switch (state) {
-    case CONFIG_POLICY:
-      return "config_policy";
-    case CONFIG_EXTENSION:
-      return "config_extension";
-    case CONFIG_OTHER_PRECEDE:
-      return "config_other_precede";
-    case CONFIG_SYSTEM:
-      return "config_system";
-    case CONFIG_FALLBACK:
-      return "config_fallback";
-    case CONFIG_UNSET:
-      return "config_unset";
-  }
-  NOTREACHED();
-  return "";
-}
-
-}  // namespace ProxyPrefs