Make chrome_shell_apk build

chrome/browser/ui/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
@@ skipping 422 matching lines @@
     "fullscreen/fullscreen_controller_test.cc",
     "fullscreen/fullscreen_controller_test.h",
     "login/login_prompt_test_utils.cc",
     "login/login_prompt_test_utils.h",
     "passwords/manage_passwords_ui_controller_mock.cc",
     "passwords/manage_passwords_ui_controller_mock.h",
     "pdf/pdf_browsertest_base.cc",
     "pdf/pdf_browsertest_base.h",
     "test/test_confirm_bubble_model.cc",
     "test/test_confirm_bubble_model.h",
-    "views/find_bar_host_unittest_util_views.cc",
     "website_settings/mock_permission_bubble_request.cc",
     "website_settings/mock_permission_bubble_request.h",
   ]
 
+  if (toolkit_views) {
+    sources += [
+      "views/find_bar_host_unittest_util_views.cc",
+    ]
+  }
+
   public_deps = [
     ":ui",
   ]
   deps = [
     "//chrome/app/theme:theme_resources",
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }