Improve process launch handle sharing API.

content/test/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
@@ skipping 1581 matching lines @@
     "//ui/gfx/ipc/skia",
     "//ui/gl",
     "//ui/gl:test_support",
   ]
 
   data_deps = [
     "//components/filesystem:filesystem",
     "//third_party/mesa:osmesa",
   ]
 
-  if (!is_win) {
-    sources += [ "../browser/file_descriptor_info_impl_unittest.cc" ]
+  if (is_posix) {
+    sources += [ "../browser/posix_file_descriptor_info_impl_unittest.cc" ]
   }
 
   if (enable_plugins) {
     # Put WebRTC-related plugins sources in the "enable_webrtc &&
     # enable_plugins" section below.
     sources += [
       "../browser/renderer_host/pepper/browser_ppapi_host_test.cc",
       "../browser/renderer_host/pepper/browser_ppapi_host_test.h",
       "../browser/renderer_host/pepper/pepper_file_system_browser_host_unittest.cc",
       "../browser/renderer_host/pepper/pepper_gamepad_host_unittest.cc",
@@ skipping 291 matching lines @@
   if (is_android) {
     deps += [ "//testing/android/native_test:native_test_native_code" ]
   }
 }
 
 group("fuzzers") {
   deps = [
     "//content/test/fuzzer",
   ]
 }