Profile shouldn't own DesktopNotificationService.

chrome/browser/desktop_notification_handler.cc

Index: chrome/browser/desktop_notification_handler.cc
diff --git a/chrome/browser/desktop_notification_handler.cc b/chrome/browser/desktop_notification_handler.cc
index 8d56e2272286aedd61ac806d25459ee99c778bd3..d55323f437b40bf3d7cc578aad253d530f7eb9da 100644
--- a/chrome/browser/desktop_notification_handler.cc
+++ b/chrome/browser/desktop_notification_handler.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/desktop_notification_handler.h"
 
 #include "chrome/browser/notifications/desktop_notification_service.h"
+#include "chrome/browser/notifications/desktop_notification_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "content/browser/renderer_host/render_process_host.h"
@@ -37,7 +38,7 @@ void DesktopNotificationHandler::OnShow(
     const DesktopNotificationHostMsg_Show_Params& params) {
   RenderProcessHost* process = GetRenderProcessHost();
   DesktopNotificationService* service =
-      process->profile()->GetDesktopNotificationService();
+      DesktopNotificationServiceFactory::GetForProfile(process->profile());
 
   service->ShowDesktopNotification(
     params,
@@ -50,7 +51,7 @@ void DesktopNotificationHandler::OnCancel(const IPC::Message& message,
                                           int notification_id) {
   RenderProcessHost* process = GetRenderProcessHost();
   DesktopNotificationService* service =
-      process->profile()->GetDesktopNotificationService();
+      DesktopNotificationServiceFactory::GetForProfile(process->profile());
 
   service->CancelDesktopNotification(
       process->id(),
@@ -71,7 +72,7 @@ void DesktopNotificationHandler::OnRequestPermission(
     return;
 
   DesktopNotificationService* service =
-      tab->profile()->GetDesktopNotificationService();
+      DesktopNotificationServiceFactory::GetForProfile(tab->profile());
   service->RequestPermission(
       source_origin,
       process->id(),