Move scoped_temp_dir from base to base/files

chrome/browser/extensions/test_extension_prefs.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_PREFS_H_
 
 #include <string>
 
+#include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/scoped_temp_dir.h"
 #include "chrome/common/extensions/extension.h"
 
 class ExtensionPrefValueMap;
 class PrefService;
 
 namespace base {
 class DictionaryValue;
 class SequencedTaskRunner;
 }
 
@@ skipping 43 matching lines @@
   // assigned.
   std::string AddExtensionAndReturnId(std::string name);
 
   PrefService* CreateIncognitoPrefService() const;
 
   // Allows disabling the loading of preferences of extensions. Becomes
   // active after calling RecreateExtensionPrefs(). Defaults to false.
   void set_extensions_disabled(bool extensions_disabled);
 
  protected:
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
   FilePath preferences_file_;
   FilePath extensions_dir_;
   scoped_ptr<PrefService> pref_service_;
   scoped_ptr<ExtensionPrefs> prefs_;
   scoped_ptr<ExtensionPrefValueMap> extension_pref_value_map_;
   const scoped_refptr<base::SequencedTaskRunner> task_runner_;
 
  private:
   bool extensions_disabled_;
   DISALLOW_COPY_AND_ASSIGN(TestExtensionPrefs);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_PREFS_H_