Gets //mandoline passing gn check

mandoline/tab/BUILD.gn

 # Copyright 2015 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("//mojo/public/mojo_application.gni")
 
 source_set("tab") {
   sources = [
     "frame.cc",
     "frame.h",
@@ skipping 19 matching lines @@
   ]
 }
 
 source_set("test_support") {
   sources = [
     "test_frame_tree_delegate.cc",
     "test_frame_tree_delegate.h",
   ]
   deps = [
     ":tab",
+    "//base",
   ]
 }
 
 mojo_native_application("mandoline_frame_apptests") {
   testonly = true
 
   sources = [
     "frame_apptest.cc",
   ]
 
   deps = [
     ":tab",
     ":test_support",
     "//base",
     "//base/test:test_config",
     "//components/view_manager/public/cpp",
     "//components/view_manager/public/interfaces",
     "//mandoline/tab/public/interfaces",
+    "//mojo/application/public/cpp:sources",
     "//mojo/application/public/cpp:test_support",
     "//ui/mojo/geometry:interfaces",
     "//ui/mojo/geometry:util",
   ]
 
   data_deps = [ "//components/view_manager" ]
 }