Componentize proxy code from chrome/browser/net

chrome/browser/extensions/api/settings_private/prefs_util.cc

 // Copyright 2015 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 "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/settings_private/prefs_util.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
+#include "components/proxy_config/proxy_config_pref_names.h"
 #include "components/url_formatter/url_fixer.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos.h"
 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos_factory.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #endif
 
 namespace extensions {
 
@@ skipping 293 matching lines @@
 }
 
 PrefService* PrefsUtil::FindServiceForPref(const std::string& pref_name) {
   PrefService* user_prefs = profile_->GetPrefs();
 
   // Proxy is a peculiar case: on ChromeOS, settings exist in both user
   // prefs and local state, but chrome://settings should affect only user prefs.
   // Elsewhere the proxy settings are stored in local state.
   // See http://crbug.com/157147
 
-  if (pref_name == prefs::kProxy) {
+  if (pref_name == proxy_config::prefs::kProxy) {
 #if defined(OS_CHROMEOS)
     return user_prefs;
 #else
     return g_browser_process->local_state();
 #endif
   }
 
   // Find which PrefService contains the given pref. Pref names should not
   // be duplicated across services, however if they are, prefer the user's
   // prefs.
   if (user_prefs->FindPreference(pref_name))
     return user_prefs;
 
   if (g_browser_process->local_state()->FindPreference(pref_name))
     return g_browser_process->local_state();
 
   return user_prefs;
 }
 
 bool PrefsUtil::IsCrosSetting(const std::string& pref_name) {
 #if defined(OS_CHROMEOS)
   return CrosSettings::Get()->IsCrosSettings(pref_name);
 #else
   return false;
 #endif
 }
 
 }  // namespace extensions