Add an end to end test: virtual keyboard opens on click of text input

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 2099 matching lines @@
       ]
     }
 
     if (use_ash) {
       sources += [
         "../browser/ui/ash/accelerator_commands_browsertest.cc",
         "../browser/ui/ash/accelerator_controller_browsertest.cc",
         "../browser/ui/ash/app_list/app_list_controller_ash_browsertest.cc",
         "../browser/ui/ash/chrome_new_window_client_browsertest.cc",
         "../browser/ui/ash/keyboard_controller_browsertest.cc",
+        "../browser/ui/ash/keyboard_end_to_end_browsertest.cc",
         "../browser/ui/ash/launcher/chrome_launcher_controller_impl_browsertest.cc",
         "../browser/ui/ash/launcher/launcher_favicon_loader_browsertest.cc",
         "../browser/ui/ash/multi_user/multi_user_window_manager_test.cc",
         "../browser/ui/ash/multi_user/multi_user_window_manager_test.h",
         "../browser/ui/ash/networking_config_delegate_chromeos_browsertest.cc",
         "../browser/ui/ash/shelf_browsertest.cc",
         "../browser/ui/ash/system_tray_client_browsertest.cc",
         "../browser/ui/ash/system_tray_delegate_chromeos_browsertest_chromeos.cc",
         "../browser/ui/ash/system_tray_tray_cast_browsertest_media_router_chromeos.cc",
         "../browser/ui/ash/volume_controller_browsertest.cc",
@@ skipping 3056 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }