Adding WebView select tests to test select element's dropdown menu

android_webview/tools/automated_ui_tests/BUILD.gn

 # Copyright 2016 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/android/rules.gni")
 import("//testing/test.gni")
 
 group("webview_ui_test_app") {
   testonly = true
   deps = [
@@ skipping 24 matching lines @@
   resource_dirs = [ "java/res" ]
   custom_package = "org.chromium.webview_ui_test"
 }
 
 instrumentation_test_apk("webview_ui_test_app_test_apk") {
   apk_name = "WebViewUiTestAppTest"
   apk_under_test = ":webview_ui_test_app_apk"
   android_manifest = "javatests/AndroidManifest.xml"
   java_files = [
     "javatests/src/org/chromium/webview_ui_test/test/ActionModeTest.java",
+    "javatests/src/org/chromium/webview_ui_test/test/DropDownListTest.java",
     "javatests/src/org/chromium/webview_ui_test/test/WebViewJSTest.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/Actions.java",
+    "javatests/src/org/chromium/webview_ui_test/test/util/Atoms.java",
     "javatests/src/org/chromium/webview_ui_test/test/util/UseLayout.java",
     "javatests/src/org/chromium/webview_ui_test/test/util/WebViewUiTestRule.java",
     "javatests/src/org/chromium/webview_ui_test/test/util/WebViewSyncWrapper.java",
   ]
   deps = [
     ":webview_ui_test_app_apk_resources",
     ":webview_ui_test_app_java",
     "//base:base_java",
     "//base:base_java_test_support",
     "//third_party/android_support_test_runner:rules_java",
     "//third_party/android_support_test_runner:runner_java",
+    "//third_party/android_tools:android_support_annotations_java",
     "//third_party/espresso:espresso_all_java",
     "//third_party/hamcrest:hamcrest_java",
     "//third_party/junit",
     "//third_party/ub-uiautomator:ub_uiautomator_java",
   ]
   data = [
     "test/data/",
   ]
 }