Delete Filesystem::GetTemporaryFolder.

webrtc/rtc_base/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.
 
 import("//build/config/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 396 matching lines @@
     "..:webrtc_common",
   ]
   public_deps = [
     ":rtc_base_approved",
   ]
   public_configs = []
 
   all_dependent_configs = [ ":rtc_base_all_dependent_config" ]
 
   sources = [
-    "applefilesystem.mm",
     "asyncinvoker-inl.h",
     "asyncinvoker.cc",
     "asyncinvoker.h",
     "asyncpacketsocket.cc",
     "asyncpacketsocket.h",
     "asyncresolverinterface.cc",
     "asyncresolverinterface.h",
     "asyncsocket.cc",
     "asyncsocket.h",
     "asynctcpsocket.cc",
@@ skipping 535 matching lines @@
     # Skip restricting visibility on mobile platforms since the tests on those
     # gets additional generated targets which would require many lines here to
     # cover (which would be confusing to read and hard to maintain).
     if (!is_android && !is_ios) {
       # TODO(kjellander): Reenable after finishing https://bugs.webrtc.org/7634.
       #visibility = [ "..:rtc_unittests" ]
     }
     sources = [
       "callback_unittest.cc",
       "crc32_unittest.cc",
-      "fileutils_unittest.cc",
       "helpers_unittest.cc",
       "httpbase_unittest.cc",
       "httpcommon_unittest.cc",
       "httpserver_unittest.cc",
       "ipaddress_unittest.cc",
       "memory_usage_unittest.cc",
       "messagedigest_unittest.cc",
       "messagequeue_unittest.cc",
       "nat_unittest.cc",
       "network_unittest.cc",
@@ skipping 47 matching lines @@
 if (is_android) {
   android_library("base_java") {
     java_files = [
       "java/src/org/webrtc/ContextUtils.java",
       "java/src/org/webrtc/Logging.java",
       "java/src/org/webrtc/Size.java",
       "java/src/org/webrtc/ThreadUtils.java",
     ]
   }
 }