Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/net/http_server_properties_manager.h

Index: chrome/browser/net/http_server_properties_manager.h
diff --git a/chrome/browser/net/http_server_properties_manager.h b/chrome/browser/net/http_server_properties_manager.h
index d71813e0971a698111b93a287528af05edd97648..fd8560fd16711b057d07b6492321de3273a707ca 100644
--- a/chrome/browser/net/http_server_properties_manager.h
+++ b/chrome/browser/net/http_server_properties_manager.h
@@ -20,6 +20,7 @@
 #include "net/http/http_server_properties_impl.h"
 
 class PrefService;
+class PrefServiceSyncable;
 
 namespace chrome_browser_net {
 
@@ -63,7 +64,7 @@ class HttpServerPropertiesManager
   void ShutdownOnUIThread();
 
   // Register |prefs| for properties managed here.
-  static void RegisterPrefs(PrefService* prefs);
+  static void RegisterPrefs(PrefServiceSyncable* prefs);
 
   // Deletes all data. Works asynchronously, but if a |completion| callback is
   // provided, it will be fired on the UI thread when everything is done.