[Mac] Add XPC alerts to GetDisplayedNotifications

chrome/browser/notifications/stub_notification_platform_bridge.cc

Index: chrome/browser/notifications/stub_notification_platform_bridge.cc
diff --git a/chrome/browser/notifications/stub_notification_platform_bridge.cc b/chrome/browser/notifications/stub_notification_platform_bridge.cc
index c07ae20a2e5ef8b582b48b3cc5343d50f500c8b7..ccc8e7410da0a6d5df1b2efc1f0052adbd7c9726 100644
--- a/chrome/browser/notifications/stub_notification_platform_bridge.cc
+++ b/chrome/browser/notifications/stub_notification_platform_bridge.cc
@@ -57,7 +57,7 @@ void StubNotificationPlatformBridge::Close(const std::string& profile_id,
 void StubNotificationPlatformBridge::GetDisplayed(
     const std::string& profile_id,
     bool incognito,
-    const DisplayedNotificationsCallback& callback) const {
+    const GetDisplayedNotificationsCallback& callback) const {
   auto displayed_notifications = base::MakeUnique<std::set<std::string>>();
 
   if (notifications_.find(profile_id) != notifications_.end()) {