Revert 195482 "Make DriveSystemService an observer of DriveNotif..."

trunk/src/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc

Index: trunk/src/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc
===================================================================
--- trunk/src/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc	(revision 195487)
+++ trunk/src/chrome/browser/ui/webui/chromeos/drive_internals_ui.cc	(working copy)
@@ -24,8 +24,6 @@
 #include "chrome/browser/google_apis/auth_service.h"
 #include "chrome/browser/google_apis/drive_api_parser.h"
 #include "chrome/browser/google_apis/drive_api_util.h"
-#include "chrome/browser/google_apis/drive_notification_manager.h"
-#include "chrome/browser/google_apis/drive_notification_manager_factory.h"
 #include "chrome/browser/google_apis/drive_service_interface.h"
 #include "chrome/browser/google_apis/drive_switches.h"
 #include "chrome/browser/google_apis/gdata_errorcode.h"
@@ -516,16 +514,13 @@
 void DriveInternalsWebUIHandler::OnGetFilesystemMetadataForDeltaUpdate(
     const drive::DriveFileSystemMetadata& metadata) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  Profile* profile = Profile::FromWebUI(web_ui());
-  google_apis::DriveNotificationManager* drive_notification_manager =
-      google_apis::DriveNotificationManagerFactory::GetForProfile(profile);
-  if (!drive_notification_manager)
+  drive::DriveSystemService* const system_service = GetSystemService();
+  if (!system_service)
     return;
 
   base::DictionaryValue delta_update_status;
-  delta_update_status.SetBoolean(
-      "push-notification-enabled",
-      drive_notification_manager->IsPushNotificationEnabled());
+  delta_update_status.SetBoolean("push-notification-enabled",
+                                 system_service->PushNotificationEnabled());
   delta_update_status.SetString(
       "last-update-check-time",
       google_apis::util::FormatTimeAsStringLocaltime(