Add more targets to "gn check"

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("//testing/test.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 component("dbus") {
   sources = [
     "bus.cc",
@@ skipping 51 matching lines @@
     "mock_exported_object.cc",
     "mock_exported_object.h",
     "mock_object_manager.cc",
     "mock_object_manager.h",
     "mock_object_proxy.cc",
     "mock_object_proxy.h",
   ]
 
   public_deps = [
     ":dbus",
+    "//base",
   ]
   deps = [
     "//testing/gmock",
   ]
 
   configs += [ "//build/config/linux:dbus" ]
 }
 
 test("dbus_unittests") {
   sources = [
@@ skipping 37 matching lines @@
   ]
 
   deps = [
     ":dbus",
     "//base",
     "//base/test:test_support",
   ]
 
   configs += [ "//build/config/linux:dbus" ]
 }