Implement ScopedFD in terms of ScopedGeneric.

base/base.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
       'base_i18n_target': 0,
     },
@@ skipping 203 matching lines @@
           'files/file_proxy.h',
           'files/file_util_proxy.cc',
           'files/file_util_proxy.h',
           'files/file_win.cc',
           'files/important_file_writer.h',
           'files/important_file_writer.cc',
           'files/memory_mapped_file.cc',
           'files/memory_mapped_file.h',
           'files/memory_mapped_file_posix.cc',
           'files/memory_mapped_file_win.cc',
+          'files/scoped_file.cc',
+          'files/scoped_file.h',
           'files/scoped_platform_file_closer.cc',
           'files/scoped_platform_file_closer.h',
           'files/scoped_temp_dir.cc',
           'files/scoped_temp_dir.h',
           'float_util.h',
           'format_macros.h',
           'gtest_prod_util.h',
           'guid.cc',
           'guid.h',
           'guid_posix.cc',
@@ skipping 751 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }