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

chrome/browser/extensions/extensions_service_unittest.cc

 // Copyright (c) 2009 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 "chrome/browser/extensions/extensions_service_unittest.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 234 matching lines @@
   // Must setup the commandline here, since Extension caches the switch value
   // when the prefs are registered.
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableExtensionToolstrips);
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableApps);
 
   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());
   profile_.reset(profile);
 
   service_ = new ExtensionsService(profile_.get(),
                                    CommandLine::ForCurrentProcess(),
                                    prefs_.get(),
                                    extensions_install_dir,
                                    false);
@@ skipping 1828 matching lines @@
   // Component extensions shouldn't get recourded in the prefs.
   ValidatePrefKeyCount(0);
 
   // Reload all extensions, and make sure it comes back.
   std::string extension_id = service_->extensions()->at(0)->id();
   loaded_.clear();
   service_->ReloadExtensions();
   ASSERT_EQ(1u, service_->extensions()->size());
   EXPECT_EQ(extension_id, service_->extensions()->at(0)->id());
 }