Rename is_chromeos in chrome/src.

components/metrics/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/features.gni")
+
 # GYP version: components/metrics.gypi:metrics
 source_set("metrics") {
   sources = [
     "call_stack_profile_metrics_provider.cc",
     "call_stack_profile_metrics_provider.h",
     "clean_exit_beacon.cc",
     "clean_exit_beacon.h",
     "client_info.cc",
     "client_info.h",
     "cloned_install_detector.cc",
@@ skipping 48 matching lines @@
     "//components/metrics/proto",
   ]
   deps = [
     "//base",
     "//base:i18n",
     "//base:prefs",
     "//components/variations",
     "//third_party/zlib",
   ]
 
-  if (is_chromeos) {
+  if (use_cros_fe) {
     deps += [ ":serialization" ]
   }
 
   if (is_win) {
     sources -= [ "machine_id_provider_stub.cc" ]
   }
 }
 
 # GYP version: components/metrics.gypi:metrics_gpu
 source_set("gpu") {
@@ skipping 114 matching lines @@
     ":profiler",
     ":test_support",
     "//base:prefs_test_support",
     "//base/test:test_support",
     "//components/variations",
     "//content/public/common",
     "//testing/gtest",
   ]
 }
 # TODO(GYP): metrics_chromeos