Add an ExtensionPrefStore, layered between the user prefs nad the managed pre...

chrome/browser/extensions/extensions_service_unittest.cc

Index: chrome/browser/extensions/extensions_service_unittest.cc
===================================================================
--- chrome/browser/extensions/extensions_service_unittest.cc	(revision 52073)
+++ chrome/browser/extensions/extensions_service_unittest.cc	(working copy)
@@ -252,12 +252,7 @@
   ExtensionTestingProfile* profile = new ExtensionTestingProfile();
   // Create a preference service that only contains user defined
   // preference values.
-  prefs_.reset(new PrefService(new PrefValueStore(
-      NULL, /* No managed preference values */
-      new JsonPrefStore( /* user defined preference values */
-          pref_file,
-          ChromeThread::GetMessageLoopProxyForThread(ChromeThread::FILE)),
-      NULL /* No suggested preference values */)));
+  prefs_.reset(PrefService::CreateUserPrefService(pref_file));
 
   Profile::RegisterUserPrefs(prefs_.get());
   browser::RegisterUserPrefs(prefs_.get());