Add browsertest for Flash permission prompt

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 1601 matching lines @@
       "../browser/net/spdyproxy/chrome_data_use_group_browsertest.cc",
       "../browser/net/websocket_browsertest.cc",
       "../browser/page_load_metrics/observers/https_engagement_metrics/https_engagement_page_load_metrics_observer_browsertest.cc",
       "../browser/page_load_metrics/page_load_metrics_browsertest.cc",
       "../browser/password_manager/credential_manager_browsertest.cc",
       "../browser/password_manager/password_manager_browsertest.cc",
       "../browser/pdf/pdf_extension_test.cc",
       "../browser/pdf/pdf_extension_test_util.cc",
       "../browser/pdf/pdf_extension_test_util.h",
       "../browser/permissions/permission_request_manager_browsertest.cc",
+      "../browser/permissions/permissions_browsertest.cc",
+      "../browser/permissions/permissions_browsertest.h",
+      "../browser/plugins/flash_permission_browsertest.cc",
       "../browser/plugins/plugin_power_saver_browsertest.cc",
       "../browser/policy/cloud/cloud_policy_browsertest.cc",
       "../browser/policy/cloud/cloud_policy_manager_browsertest.cc",
       "../browser/policy/cloud/component_cloud_policy_browsertest.cc",
       "../browser/policy/cloud/device_management_service_browsertest.cc",
       "../browser/policy/cloud/test_request_interceptor.cc",
       "../browser/policy/cloud/test_request_interceptor.h",
       "../browser/policy/policy_browsertest.cc",
       "../browser/policy/policy_network_browsertest.cc",
       "../browser/policy/policy_prefs_browsertest.cc",
@@ skipping 3382 matching lines @@
       "touch_hud",
       "ui",
     ]
 
     if (is_linux && !is_android) {
       deps += [ "//components/font_service:manifest" ]
       packaged_services += [ "font_service" ]
     }
   }
 }