testRunner.layoutAndPaintAsyncThen ==> testRunner.compositeAsyncThen

components/test_runner/BUILD.gn

 # Copyright 2015 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/features.gni")
 import("//build/config/ui.gni")
 if (is_android) {
   import("//build/config/android/config.gni")
 }
 
 component("test_runner") {
   testonly = true
 
   defines = [ "TEST_RUNNER_IMPLEMENTATION" ]
 
   sources = [
     "accessibility_controller.cc",
     "accessibility_controller.h",
     "app_banner_client.cc",
     "app_banner_client.h",
+    "composite_async_then.cc",
+    "composite_async_then.h",
     "event_sender.cc",
     "event_sender.h",
     "gamepad_controller.cc",
     "gamepad_controller.h",
     "gc_controller.cc",
     "gc_controller.h",
-    "layout_and_paint_async_then.cc",
-    "layout_and_paint_async_then.h",
     "layout_dump.cc",
     "layout_dump.h",
     "layout_test_runtime_flags.cc",
     "layout_test_runtime_flags.h",
     "mock_color_chooser.cc",
     "mock_color_chooser.h",
     "mock_content_settings_client.cc",
     "mock_content_settings_client.h",
     "mock_credential_manager_client.cc",
     "mock_credential_manager_client.h",
@@ skipping 169 matching lines @@
     if (is_mac) {
       libs = [ "AppKit.framework" ]
     }
 
     deps = [
       "//build/config/sanitizers:deps",
       "//build/win:default_exe_manifest",
     ]
   }
 }