Make extensions DSE persistent in browser prefs

components/prefs/testing_pref_service.cc

 // Copyright (c) 2012 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 "components/prefs/testing_pref_service.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "components/prefs/default_pref_store.h"
 #include "components/prefs/pref_notifier_impl.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_value_store.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 template <>
 TestingPrefServiceBase<PrefService, PrefRegistry>::TestingPrefServiceBase(
     TestingPrefStore* managed_prefs,
+    TestingPrefStore* extension_prefs,
     TestingPrefStore* user_prefs,
     TestingPrefStore* recommended_prefs,
     PrefRegistry* pref_registry,
     PrefNotifierImpl* pref_notifier)
     : PrefService(
           pref_notifier,
           new PrefValueStore(managed_prefs,
                              NULL,
-                             NULL,
+                             extension_prefs,
                              NULL,
                              user_prefs,
                              recommended_prefs,
                              pref_registry->defaults().get(),
                              pref_notifier),
           user_prefs,
           pref_registry,
           base::Bind(&TestingPrefServiceBase<PrefService,
                                              PrefRegistry>::HandleReadError),
           false),
       managed_prefs_(managed_prefs),
+      extension_prefs_(extension_prefs),
       user_prefs_(user_prefs),
       recommended_prefs_(recommended_prefs) {}
 
 TestingPrefServiceSimple::TestingPrefServiceSimple()
     : TestingPrefServiceBase<PrefService, PrefRegistry>(
           new TestingPrefStore(),
           new TestingPrefStore(),
           new TestingPrefStore(),
+          new TestingPrefStore(),
           new PrefRegistrySimple(),
           new PrefNotifierImpl()) {}
 
 TestingPrefServiceSimple::~TestingPrefServiceSimple() {
 }
 
 PrefRegistrySimple* TestingPrefServiceSimple::registry() {
   return static_cast<PrefRegistrySimple*>(DeprecatedGetPrefRegistry());
 }