[NOT FOR REVIEW] Significantly simplify the PlatformNotificationService //content API.

content/browser/notifications/page_notification_delegate.cc

 // Copyright 2014 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 "content/browser/notifications/page_notification_delegate.h"
 
 #include "content/browser/notifications/notification_message_filter.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/common/platform_notification_messages.h"
 #include "content/public/browser/render_process_host.h"
 
 namespace content {
 
 PageNotificationDelegate::PageNotificationDelegate(int render_process_id,
                                                    int notification_id)
     : render_process_id_(render_process_id),
       notification_id_(notification_id) {}
 
 PageNotificationDelegate::~PageNotificationDelegate() {}
 
-void PageNotificationDelegate::NotificationDisplayed() {
+void PageNotificationDelegate::Display() {
   RenderProcessHost* sender = RenderProcessHost::FromID(render_process_id_);
   if (!sender)
     return;
 
   sender->Send(new PlatformNotificationMsg_DidShow(notification_id_));
 }
 
-void PageNotificationDelegate::NotificationClosed() {
+void PageNotificationDelegate::Close(bool by_user) {
   RenderProcessHost* sender = RenderProcessHost::FromID(render_process_id_);
   if (!sender)
     return;
 
   sender->Send(new PlatformNotificationMsg_DidClose(notification_id_));
   static_cast<RenderProcessHostImpl*>(sender)
       ->notification_message_filter()->DidCloseNotification(notification_id_);
 }
 
-void PageNotificationDelegate::NotificationClick() {
+bool PageNotificationDelegate::HasClickedListener() {
+  return true;
+}
+
+void PageNotificationDelegate::Click() {
   RenderProcessHost* sender = RenderProcessHost::FromID(render_process_id_);
   if (!sender)
     return;
 
   sender->Send(new PlatformNotificationMsg_DidClick(notification_id_));
 }
 
 }  // namespace content