Move scoped_temp_dir from base to base/files

chrome/test/base/ui_test_utils.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/test/base/ui_test_utils.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
@@ skipping 405 matching lines @@
 
 void WaitForHistoryToLoad(HistoryService* history_service) {
   content::WindowedNotificationObserver history_loaded_observer(
       chrome::NOTIFICATION_HISTORY_LOADED,
       content::NotificationService::AllSources());
   if (!history_service->BackendLoaded())
     history_loaded_observer.Wait();
 }
 
 void DownloadURL(Browser* browser, const GURL& download_url) {
-  ScopedTempDir downloads_directory;
+  base::ScopedTempDir downloads_directory;
   ASSERT_TRUE(downloads_directory.CreateUniqueTempDir());
   browser->profile()->GetPrefs()->SetFilePath(
       prefs::kDownloadDefaultDirectory, downloads_directory.path());
 
   content::DownloadManager* download_manager =
       content::BrowserContext::GetDownloadManager(browser->profile());
   scoped_ptr<content::DownloadTestObserver> observer(
       new content::DownloadTestObserverTerminal(
           download_manager, 1,
           content::DownloadTestObserver::ON_DANGEROUS_DOWNLOAD_ACCEPT));
@@ skipping 289 matching lines @@
 void HistoryEnumerator::HistoryQueryComplete(
     const base::Closure& quit_task,
     HistoryService::Handle request_handle,
     history::QueryResults* results) {
   for (size_t i = 0; i < results->size(); ++i)
     urls_.push_back((*results)[i].url());
   quit_task.Run();
 }
 
 }  // namespace ui_test_utils