Improve process launch handle sharing API.

content/browser/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/buildflag_header.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//gpu/vulkan/features.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
@@ skipping 1567 matching lines @@
       "memory/memory_monitor_chromeos.cc",
       "memory/memory_monitor_chromeos.h",
     ]
   } else {
     sources += [
       "memory/memory_monitor_linux.cc",
       "memory/memory_monitor_linux.h",
     ]
   }
 
-  if (!is_win) {
+  if (is_posix) {
     sources += [
-      "file_descriptor_info_impl.cc",
-      "file_descriptor_info_impl.h",
+      "posix_file_descriptor_info_impl.cc",
+      "posix_file_descriptor_info_impl.h",
     ]
   }
 
   if (enable_basic_printing || enable_print_preview) {
     deps += [ "//printing" ]
   }
 
   if (!is_mac) {
     deps += [ "//sandbox" ]
   }
@@ skipping 559 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }