Add more targets to "gn check"

device/media_transfer_protocol/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("//third_party/protobuf/proto_library.gni")
 
 # GYP version: device/media_transfer_protocol/media_transfer_protocol.gyp:mtp_file_entry_proto
 proto_library("mtp_file_entry_proto") {
   sources = [
     "//third_party/cros_system_api/dbus/mtp_file_entry.proto",
@@ skipping 11 matching lines @@
 
 # GYP version: device/media_transfer_protocol:media_transfer_protocol.gyp:media_transfer_protocol
 static_library("media_transfer_protocol") {
   sources = [
     "media_transfer_protocol_daemon_client.cc",
     "media_transfer_protocol_daemon_client.h",
     "media_transfer_protocol_manager.cc",
     "media_transfer_protocol_manager.h",
   ]
 
-  configs += [ "//build/config/linux:dbus" ]
-
   public_deps = [
     ":mtp_file_entry_proto",
     ":mtp_storage_info_proto",
+    "//base",
   ]
+  deps = [
+    "//dbus",
+  ]
+
+  if (is_chromeos) {
+    deps += [ "//chromeos" ]
+  }
 }