Base: Introduce a new version of FileUtilProxy that works with File.

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 192 matching lines @@
           'files/file_path.cc',
           'files/file_path.h',
           'files/file_path_constants.cc',
           'files/file_path_watcher.cc',
           'files/file_path_watcher.h',
           'files/file_path_watcher_kqueue.cc',
           'files/file_path_watcher_linux.cc',
           'files/file_path_watcher_stub.cc',
           'files/file_path_watcher_win.cc',
           'files/file_posix.cc',
+          'files/file_proxy.cc',
+          '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_platform_file_closer.cc',
@@ skipping 543 matching lines @@
             'sources!': [
                'allocator/type_profiler_control.cc',
                'allocator/type_profiler_control.h',
                'base_paths.cc',
                'cpu.cc',
                'debug/stack_trace_posix.cc',
                'file_util.cc',
                'file_util_posix.cc',
                'files/file_enumerator_posix.cc',
                'files/file_path_watcher_kqueue.cc',
+               'files/file_proxy.cc',
                'files/file_util_proxy.cc',
                'memory/shared_memory_posix.cc',
                'native_library_posix.cc',
                'path_service.cc',
                'posix/unix_domain_socket_linux.cc',
                'process/kill_posix.cc',
                'process/launch_posix.cc',
                'process/process_metrics_posix.cc',
                'process/process_posix.cc',
                'rand_util_posix.cc',
@@ skipping 193 matching lines @@
           'i18n/time_formatting.h',
           'i18n/timezone.cc',
           'i18n/timezone.h',
           'i18n/utf8_validator_tables.cc',
           'i18n/utf8_validator_tables.h',
         ],
       }]
     ],
   },
 }