[TooManyTabs] Add TabNavigationThrottle

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 3578 matching lines @@
       "../browser/media_galleries/media_file_system_registry_unittest.cc",
       "../browser/media_galleries/media_galleries_dialog_controller_mock.cc",
       "../browser/media_galleries/media_galleries_dialog_controller_mock.h",
       "../browser/media_galleries/media_galleries_dialog_controller_test_util.cc",
       "../browser/media_galleries/media_galleries_dialog_controller_test_util.h",
       "../browser/media_galleries/media_galleries_permission_controller_unittest.cc",
       "../browser/media_galleries/media_galleries_permissions_unittest.cc",
       "../browser/media_galleries/media_galleries_preferences_unittest.cc",
       "../browser/media_galleries/win/mtp_device_delegate_impl_win_unittest.cc",
       "../browser/media_galleries/win/mtp_device_object_enumerator_unittest.cc",
+      "../browser/resource_coordinator/background_tab_navigation_throttle_unittest.cc",
       "../browser/resource_coordinator/tab_manager_delegate_chromeos_unittest.cc",
       "../browser/resource_coordinator/tab_manager_unittest.cc",
       "../browser/resource_coordinator/tab_manager_web_contents_data_unittest.cc",
 
       # Android does not use the Message Center notification system.
       "../browser/net/firefox_proxy_settings_unittest.cc",
       "../browser/notifications/message_center_notifications_unittest.cc",
       "../browser/notifications/message_center_settings_controller_unittest.cc",
       "../browser/platform_util_unittest.cc",
       "../browser/policy/policy_path_parser_unittest.cc",
@@ skipping 1601 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }