Rename is_chromeos in chrome/src.

components/gcm_driver/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/gcm_driver.gypi:gcm_driver
 static_library("gcm_driver") {
   sources = [
     "android/component_jni_registrar.cc",
     "android/component_jni_registrar.h",
     "default_gcm_app_handler.cc",
     "default_gcm_app_handler.h",
     "gcm_account_mapper.cc",
     "gcm_account_mapper.h",
     "gcm_activity.cc",
@@ skipping 33 matching lines @@
   deps = [
     "crypto",
     "//base",
     "//components/gcm_driver/common",
     "//components/os_crypt",
     "//google_apis/gcm",
     "//net",
     "//sync/protocol",
   ]
 
-  if (is_chromeos) {
+  if (use_cros_fe) {
     deps += [ "//components/timers" ]
   }
 
   if (is_android) {
     sources -= [
       "gcm_account_mapper.cc",
       "gcm_account_mapper.h",
       "gcm_channel_status_request.cc",
       "gcm_channel_status_request.h",
       "gcm_channel_status_syncer.cc",
@@ skipping 57 matching lines @@
     ]
 
     deps = [
       ":gcm_driver",
       ":test_support",
       "//testing/gtest",
       "//third_party/protobuf:protobuf_lite",
     ]
   }
 }