NotificationObjectProxy should own the DesktopNotificationDelegateImpl

chrome/browser/notifications/notification_object_proxy.cc

 // Copyright (c) 2012 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/notifications/notification_object_proxy.h"
 
 #include "base/guid.h"
 #include "base/strings/stringprintf.h"
 #include "content/public/browser/desktop_notification_delegate.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 
 NotificationObjectProxy::NotificationObjectProxy(
     content::RenderFrameHost* render_frame_host,
     content::DesktopNotificationDelegate* delegate)
     : render_process_id_(render_frame_host->GetProcess()->GetID()),
       render_frame_id_(render_frame_host->GetRoutingID()),
       delegate_(delegate),
       displayed_(false),
       id_(base::GenerateGUID()) {
 }
 
+NotificationObjectProxy::~NotificationObjectProxy() {}
+
 void NotificationObjectProxy::Display() {
   // This method is called each time the notification is shown to the user
   // but we only want to fire the event the first time.
   if (displayed_)
     return;
   displayed_ = true;
 
   delegate_->NotificationDisplayed();
 }
 
@@ skipping 14 matching lines @@
 }
 
 int NotificationObjectProxy::process_id() const {
   return render_process_id_;
 }
 
 content::WebContents* NotificationObjectProxy::GetWebContents() const {
   return content::WebContents::FromRenderFrameHost(
       content::RenderFrameHost::FromID(render_process_id_, render_frame_id_));
 }