PART2: Make SignedSettings use proper Value types instead of string all around the place.

chrome/browser/chromeos/proxy_config_service_impl.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_CHROMEOS_PROXY_CONFIG_SERVICE_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_PROXY_CONFIG_SERVICE_IMPL_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 17 matching lines @@
 //   on chromeos device from chromeos revisions before migration to flimflam,
 // - persists proxy setting per network in flimflim
 // - provides network stack with latest effective proxy configuration for
 //   currently active network via PrefProxyConfigTrackerImpl's mechanism of
 //   pushing config to ChromeProxyConfigService
 // - provides UI with methods to retrieve and modify proxy configuration for
 //   any remembered network (either currently active or non-active) of current
 //   user profile
 class ProxyConfigServiceImpl
     : public PrefProxyConfigTrackerImpl,
-      public SignedSettings::Delegate<std::string>,
+      public SignedSettings::Delegate<const base::Value*>,
       public NetworkLibrary::NetworkManagerObserver,
       public NetworkLibrary::NetworkObserver {
  public:
   // ProxyConfigServiceImpl is created in ProxyServiceFactory::
   // CreatePrefProxyConfigTrackerImpl via Profile::GetProxyConfigTracker() for
   // profile or IOThread constructor for local state and is owned by the
   // respective classes.
   //
   // From the UI, it is accessed via Profile::GetProxyConfigTracker to allow
   // user to read or modify the proxy configuration via UIGetProxyConfig or
@@ skipping 137 matching lines @@
   // changed by the UI.
   void AddNotificationCallback(base::Closure callback);
   void RemoveNotificationCallback(base::Closure callback);
 
   // PrefProxyConfigTrackerImpl implementation.
   virtual void OnProxyConfigChanged(ProxyPrefs::ConfigState config_state,
                                     const net::ProxyConfig& config) OVERRIDE;
 
   // Implementation for SignedSettings::Delegate
   virtual void OnSettingsOpCompleted(SignedSettings::ReturnCode code,
-                                     std::string value) OVERRIDE;
+                                     const base::Value* value) OVERRIDE;
 
   // NetworkLibrary::NetworkManagerObserver implementation.
   virtual void OnNetworkManagerChanged(NetworkLibrary* cros) OVERRIDE;
 
   // NetworkLibrary::NetworkObserver implementation.
   virtual void OnNetworkChanged(NetworkLibrary* cros,
                                 const Network* network) OVERRIDE;
 
   // Register UseShardProxies preference.
   static void RegisterPrefs(PrefService* pref_service);
@@ skipping 94 matching lines @@
   // Callbacks for notification when network to be viewed has been changed from
   // the UI.
   std::vector<base::Closure> callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PROXY_CONFIG_SERVICE_IMPL_H_