GN: Make enable_websockets and disable_file_support GN args

net/BUILD.gn

 # Copyright (c) 2013 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/chromecast_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build_overrides/v8.gni")
@@ skipping 19 matching lines @@
 # It needs configuration (krb5.conf and so on).
 use_kerberos = !is_chromeos && !is_ios && !is_chromecast && !is_headless
 
 # The way the cache uses mmap() is inefficient on some Android devices. If
 # this flag is set, we hackily avoid using mmap() in the disk cache. We are
 # pretty confident that mmap-ing the index would not hurt any existing x86
 # android devices, but we cannot be so sure about the variety of ARM devices.
 # So enable it for x86 only for now.
 posix_avoid_mmap = is_android && current_cpu != "x86"
 
-# WebSockets and socket stream code are used everywhere except iOS.
-enable_websockets = !is_ios
 use_v8_in_net = !is_ios
 enable_built_in_dns = !is_ios
-disable_ftp_support = is_ios
 
 declare_args() {
   # Disables support for file URLs.  File URL support requires use of icu.
   disable_file_support = false
   enable_bidirectional_stream = false
+
+  # WebSockets and socket stream code are not used on iOS and are optional in
+  # cronet.
+  enable_websockets = !is_ios
+  disable_ftp_support = is_ios
 }
 
 config("net_config") {
   defines = []
   if (posix_avoid_mmap) {
     defines += [ "POSIX_AVOID_MMAP" ]
   }
   if (disable_file_support) {
     defines += [ "DISABLE_FILE_SUPPORT" ]
   }
@@ skipping 1644 matching lines @@
   if (enable_websockets) {
     sources += [ "websockets/websocket_frame_perftest.cc" ]
   }
 
   if (use_v8_in_net) {
     deps += [ ":net_with_v8" ]
   } else {
     sources -= [ "proxy/proxy_resolver_perftest.cc" ]
   }
 }