Revert of Minimize the delegate dependencies for non persistent notifications.

content/browser/notifications/notification_event_dispatcher_impl.h

Index: content/browser/notifications/notification_event_dispatcher_impl.h
diff --git a/content/browser/notifications/notification_event_dispatcher_impl.h b/content/browser/notifications/notification_event_dispatcher_impl.h
index 3e19af681540d62fb5c82932df6306e1500f7508..a0b0399e470cc43f2f234cfb010f91ed9c855d38 100644
--- a/content/browser/notifications/notification_event_dispatcher_impl.h
+++ b/content/browser/notifications/notification_event_dispatcher_impl.h
@@ -4,8 +4,6 @@
 
 #ifndef CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_EVENT_DISPATCHER_IMPL_H_
 #define CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_EVENT_DISPATCHER_IMPL_H_
-
-#include <map>
 
 #include "base/macros.h"
 #include "base/memory/singleton.h"
@@ -36,32 +34,10 @@
       bool by_user,
       const NotificationDispatchCompleteCallback& dispatch_complete_callback)
       override;
-  void DispatchNonPersistentShowEvent(
-      const std::string& notification_id) override;
-  void DispatchNonPersistentClickEvent(
-      const std::string& notification_id) override;
-  void DispatchNonPersistentCloseEvent(
-      const std::string& notification_id) override;
-
-  // Called when a renderer that had shown a non persistent notification
-  // dissappears.
-  void RendererGone(int renderer_id);
-
-  // Regsiter the fact that a non persistent notification has been
-  // displayed.
-  void RegisterNonPersistentNotification(const std::string& notification_id,
-                                         int renderer_id,
-                                         int non_persistent_id);
 
  private:
   NotificationEventDispatcherImpl();
   ~NotificationEventDispatcherImpl() override;
-
-  // Notification Id -> renderer Id.
-  std::map<std::string, int> renderer_ids_;
-
-  // Notification Id -> non-persistent notification id.
-  std::map<std::string, int> non_persistent_ids_;
 
   friend struct base::DefaultSingletonTraits<NotificationEventDispatcherImpl>;