More work on content/browser GN build.

dbus/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")
 
 component("dbus") {
   sources = [
     "bus.cc",
     "bus.h",
@@ skipping 23 matching lines @@
 
   defines = [
     "DBUS_IMPLEMENTATION",
   ]
 
   deps = [
     "//base",
     "//third_party/protobuf:protobuf_lite",
   ]
 
-  configs += [
+  direct_dependent_configs = [
     "//build/config/linux:dbus",
   ]
 }
 
 proto_library("dbus_test_proto") {
   sources = [ "test_proto.proto" ]
 }
 
 # This target contains mocks that can be used to write unit tests without
 # issuing actual D-Bus calls.
@@ skipping 63 matching lines @@
   deps = [
     ":dbus",
     "//base",
     "//base/test:test_support",
   ]
 
   configs += [
     "//build/config/linux:dbus",
   ]
 }