Rename is_chromeos in chrome/src.

chrome/chrome_repack_locales.gni

 # 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/features.gni")
 import("//build/config/ui.gni")
 import("//tools/grit/repack.gni")
 
 # Arguments:
@@ skipping 23 matching lines @@
       "//chrome/app/resources:platform_locale_settings",
       "//chrome/app:generated_resources",
       "//chrome/app/resources:locale_settings",
       "//components/strings",
     ]
 
     if (use_ash) {
       sources += [ "${root_gen_dir}/ash/strings/ash_strings_${locale}.pak" ]
       deps += [ "//ash/strings" ]
     }
-    if (is_chromeos) {
+    if (use_cros_fe) {
       sources += [
         "${root_gen_dir}/remoting/resources/${locale}.pak",
         "${root_gen_dir}/ui/chromeos/strings/ui_chromeos_strings_${locale}.pak",
       ]
       deps += [
         "//remoting/resources",
         "//ui/chromeos/strings",
       ]
     }
     if (!is_ios) {
@@ skipping 94 matching lines @@
 
     current_index = current_index + 1
   }
 
   # The group that external targets depend on which collects all deps.
   group(group_target_name) {
     forward_variables_from(invoker, [ "visibility" ])
     deps = locale_targets
   }
 }