Remove unused packaged app window controls code.

chrome/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
@@ skipping 1287 matching lines @@
       "../browser/apps/app_shim/test/app_shim_host_manager_test_api_mac.cc",
       "../browser/apps/app_shim/test/app_shim_host_manager_test_api_mac.h",
       "../browser/apps/app_speech_recognition_browsertest.cc",
       "../browser/apps/app_url_redirector_browsertest.cc",
       "../browser/apps/app_window_browsertest.cc",
       "../browser/apps/event_page_browsertest.cc",
       "../browser/apps/guest_view/app_view_browsertest.cc",
       "../browser/apps/guest_view/extension_view/extension_view_browsertest.cc",
       "../browser/apps/guest_view/web_view_browsertest.cc",
       "../browser/apps/service_worker_browsertest.cc",
-      "../browser/apps/window_controls_browsertest.cc",
       "../browser/autocomplete/autocomplete_browsertest.cc",
       "../browser/autofill/autofill_browsertest.cc",
       "../browser/autofill/autofill_server_browsertest.cc",
       "../browser/autofill/content_autofill_driver_browsertest.cc",
       "../browser/autofill/form_structure_browsertest.cc",
       "../browser/banners/app_banner_manager_browsertest.cc",
       "../browser/bitmap_fetcher/bitmap_fetcher_browsertest.cc",
       "../browser/browser_encoding_browsertest.cc",
       "../browser/browsing_data/autofill_counter_browsertest.cc",
       "../browser/browsing_data/browsing_data_cache_storage_helper_browsertest.cc",
@@ skipping 3776 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }