Use mojo app list interfaces for mash and classic ash.

ui/app_list/presenter/test/test_app_list_presenter.cc

+// Copyright 2016 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.
+
+#include "ui/app_list/presenter/test/test_app_list_presenter.h"
+
+namespace app_list {
+
+TestAppListPresenter::TestAppListPresenter() : binding_(this) {}
+
+TestAppListPresenter::~TestAppListPresenter() {}
+
+app_list::mojom::AppListPresenterPtr
+TestAppListPresenter::CreateInterfacePtrAndBind() {
+  return binding_.CreateInterfacePtrAndBind();
+}
+
+void TestAppListPresenter::Show(int64_t display_id) {
+  show_count_++;
+}
+
+void TestAppListPresenter::Dismiss() {
+  dismiss_count_++;
+}
+
+void TestAppListPresenter::ToggleAppList(int64_t display_id) {
+  toggle_count_++;
+}
+
+}  // namespace app_list