Reland of Initial version of file wrapper

webrtc/base/base.gyp

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'includes': [ '../build/common.gypi', ],
@@ skipping 36 matching lines @@
         'copyonwritebuffer.h',
         'criticalsection.cc',
         'criticalsection.h',
         'deprecation.h',
         'event.cc',
         'event.h',
         'event_tracer.cc',
         'event_tracer.h',
         'exp_filter.cc',
         'exp_filter.h',
+        'file.cc',
+        'file.h',
         'format_macros.h',
         'location.h',
         'location.cc',
         'md5.cc',
         'md5.h',
         'md5digest.cc',
         'md5digest.h',
         'mod_ops.h',
         'onetimeevent.h',
         'optional.h',
@@ skipping 28 matching lines @@
         'thread_checker.h',
         'thread_checker_impl.cc',
         'thread_checker_impl.h',
         'timestampaligner.cc',
         'timestampaligner.h',
         'timeutils.cc',
         'timeutils.h',
         'trace_event.h',
       ],
       'conditions': [
+        ['os_posix==1', {
+          'sources': [
+            'file_posix.cc',
+          ],
+        }],
+        ['OS=="win"', {
+          'sources': [
+            'file_win.cc',
+          ],
+        }],
         ['build_with_chromium==1', {
           'dependencies': [
             '<(DEPTH)/base/base.gyp:base',
           ],
           'include_dirs': [
             '../../webrtc_overrides',
           ],
           'sources': [
             '../../webrtc_overrides/webrtc/base/logging.cc',
             '../../webrtc_overrides/webrtc/base/logging.h',
@@ skipping 559 matching lines @@
     },
     {
      'target_name': 'gtest_prod',
       'type': 'static_library',
       'sources': [
         'gtest_prod_util.h',
       ],
     },
   ],
 }