Fixed crash on double profile delete operation.

chrome/browser/ui/webui/signin/user_manager_screen_handler.cc

 // Copyright 2013 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/ui/webui/signin/user_manager_screen_handler.h"
 
 #include <stddef.h>
 #include <utility>
 #include <vector>
 
@@ skipping 445 matching lines @@
     NOTREACHED();
     return;
   }
 
   base::FilePath profile_path;
   if (!base::GetValueAsFilePath(*profile_path_value, &profile_path)) {
     NOTREACHED();
     return;
   }
 
-  if (!profiles::IsMultipleProfilesEnabled()) {
-    NOTREACHED();
-    return;
-  }
+  DCHECK(profiles::IsMultipleProfilesEnabled());
 
   // The callback is run if the only profile has been deleted, and a new
   // profile has been created to replace it.
-  g_browser_process->profile_manager()->ScheduleProfileForDeletion(
-      profile_path, base::Bind(&webui::OpenNewWindowForProfile));
-  ProfileMetrics::LogProfileDeleteUser(
-      ProfileMetrics::DELETE_PROFILE_USER_MANAGER);
+  webui::DeleteProfileAtPath(profile_path,
+                             web_ui(),
+                             ProfileMetrics::DELETE_PROFILE_USER_MANAGER);
 }
 
 void UserManagerScreenHandler::HandleLaunchGuest(const base::ListValue* args) {
   if (IsGuestModeEnabled()) {
     profiles::SwitchToGuestProfile(
         base::Bind(&UserManagerScreenHandler::OnSwitchToProfileComplete,
                    weak_ptr_factory_.GetWeakPtr()));
   } else {
     // The UI should have prevented the user from allowing the selection of
     // guest mode.
@@ skipping 494 matching lines @@
     Profile* profile, Profile::CreateStatus profile_create_status) {
   Browser* browser = chrome::FindAnyBrowser(profile, false);
   if (browser && browser->window()) {
     OnBrowserWindowReady(browser);
   } else {
     registrar_.Add(this,
                    chrome::NOTIFICATION_BROWSER_WINDOW_READY,
                    content::NotificationService::AllSources());
   }
 }