Reland of Initial version of file wrapper

webrtc/BUILD.gn

 # 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.
 
 # TODO(kjellander): Rebase this to webrtc/build/common.gypi changes after r6330.
 
@@ skipping 440 matching lines @@
       "base/bufferqueue_unittest.cc",
       "base/bytebuffer_unittest.cc",
       "base/byteorder_unittest.cc",
       "base/callback_unittest.cc",
       "base/copyonwritebuffer_unittest.cc",
       "base/crc32_unittest.cc",
       "base/criticalsection_unittest.cc",
       "base/event_tracer_unittest.cc",
       "base/event_unittest.cc",
       "base/exp_filter_unittest.cc",
+      "base/file_unittest.cc",
       "base/filerotatingstream_unittest.cc",
       "base/fileutils_unittest.cc",
       "base/helpers_unittest.cc",
       "base/httpbase_unittest.cc",
       "base/httpcommon_unittest.cc",
       "base/httpserver_unittest.cc",
       "base/ipaddress_unittest.cc",
       "base/logging_unittest.cc",
       "base/md5digest_unittest.cc",
       "base/messagedigest_unittest.cc",
@@ skipping 395 matching lines @@
     if (is_ios || (is_mac && target_cpu != "x86")) {
       defines = [ "CARBON_DEPRECATED=YES" ]
     }
     if (is_clang) {
       # Suppress warnings from the Chromium Clang plugin.
       # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
       configs -= [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 }