Add app_list_presenterr pointer in app_list_presenter_delegate_mus to use dismiss function

ui/views/mus/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/features.gni")
 import("//build/config/ui.gni")
 import("//services/shell/public/cpp/service.gni")
 import("//services/shell/public/service_manifest.gni")
 import("//testing/test.gni")
 import("//tools/grit/repack.gni")
 
 component("mus") {
   output_name = "ui_views_mus_lib"
 
   sources = [
+    "//chrome/browser/profiles/profile.cc",
+    "//chrome/browser/profiles/profile.h",
+    "//chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.cc",
+    "//chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus.h",
+    "//services/ui/public/cpp/tests/window_tree_client_private.cc",
+    "//services/ui/public/cpp/tests/window_tree_client_private.h",
+    "//ui/app_list/presenter/app_list_view_delegate_factory.cc",
+    "//ui/app_list/presenter/app_list_view_delegate_factory.h",
+    "//ui/app_list/test/app_list_test_view_delegate.cc",
+    "//ui/app_list/test/app_list_test_view_delegate.h",
     "aura_init.cc",
     "aura_init.h",
     "clipboard_mus.cc",
     "clipboard_mus.h",
     "input_method_mus.cc",
     "input_method_mus.h",
     "mus_export.h",
     "native_widget_mus.cc",
     "native_widget_mus.h",
     "os_exchange_data_provider_mus.cc",
@@ skipping 115 matching lines @@
 
   data_deps = [
     "//ui/resources:ui_test_pak_data",
   ]
 }
 
 test("views_mus_unittests") {
   testonly = true
 
   sources = [
+    "//chrome/browser/ui/ash/app_list/app_list_presenter_delegate_mus_unittest.cc",
     "input_method_mus_unittest.cc",
     "native_widget_mus_unittest.cc",
     "os_exchange_data_provider_mus_unittest.cc",
     "pointer_watcher_event_router_unittest.cc",
     "run_all_unittests_mus.cc",
     "screen_mus_unittest.cc",
   ]
 
   configs += [ "//build/config:precompiled_headers" ]
 
@@ skipping 120 matching lines @@
   type = "exe"
   name = "views_mus_unittests"
   source = "unittests_manifest.json"
 }
 
 service_manifest("interactive_ui_tests_manifest") {
   type = "exe"
   name = "views_mus_interactive_ui_tests"
   source = "interactive_ui_tests_manifest.json"
 }