Adds async interface method, which is used by JsonPrefStore. Also see the bug description for more info.

BUG=chromium-os:14289
TEST=JsonPrefStoreTest.*

Review URL: http://codereview.chromium.org/6894020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@84962 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/prefs/pref_notifier_impl_unittest.cc b/chrome/browser/prefs/pref_notifier_impl_unittest.cc
index 096b625..c413e32 100644
--- a/chrome/browser/prefs/pref_notifier_impl_unittest.cc
+++ b/chrome/browser/prefs/pref_notifier_impl_unittest.cc
@@ -86,8 +86,8 @@
       Field(&NotificationType::value,
             NotificationType::PREF_INITIALIZATION_COMPLETED),
       Source<PrefService>(&pref_service_),
-      NotificationService::NoDetails()));
-  notifier.OnInitializationCompleted();
+      Property(&Details<bool>::ptr, testing::Pointee(true))));
+  notifier.OnInitializationCompleted(true);
 }
 
 TEST_F(PrefNotifierTest, AddAndRemovePrefObservers) {