Converts ash/wm/mru_window_tracker_unittest.cc to use AshTest

ash/mus/property_util.cc

 // 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.
 
 #include "ash/mus/property_util.h"
 
 #include <stdint.h>
 
 #include "ash/mus/shadow.h"
 #include "services/ui/public/cpp/property_type_converters.h"
@@ skipping 247 matching lines @@
              ui::mojom::WindowManager::kRendererParentTitleArea_Property);
 }
 
 int64_t GetInitialDisplayId(const ui::Window::SharedProperties& properties) {
   auto iter =
       properties.find(ui::mojom::WindowManager::kInitialDisplayId_Property);
   return iter == properties.end() ? display::Display::kInvalidDisplayID
                                   : mojo::ConvertTo<int64_t>(iter->second);
 }
 
+void SetExcludeFromMru(ui::Window* window, bool value) {
+  window->SetSharedProperty<bool>(
+      ui::mojom::WindowManager::kExcludeFromMru_Property, value);
+}
+
+bool GetExcludeFromMru(const ui::Window* window) {
+  return window->HasSharedProperty(
+             ui::mojom::WindowManager::kExcludeFromMru_Property) &&
+         window->GetSharedProperty<bool>(
+             ui::mojom::WindowManager::kExcludeFromMru_Property);
+}
+
 }  // namespace mus
 }  // namespace ash