Converts ash to use aura-mus

ash/mus/layout_manager_unittest.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/layout_manager.h"
-
-#include <memory>
-
-#include "base/macros.h"
-#include "services/ui/public/cpp/tests/test_window.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace ash {
-namespace mus {
-
-class TestLayoutManager : public LayoutManager {
- public:
-  explicit TestLayoutManager(ui::Window* window)
-      : LayoutManager(window), layout_called_(false) {}
-  ~TestLayoutManager() override {}
-
-  bool GetAndResetLayoutCalled() {
-    bool was_layout_called = layout_called_;
-    layout_called_ = false;
-    return was_layout_called;
-  }
-
- private:
-  // LayoutManager:
-  void LayoutWindow(ui::Window* window) override { layout_called_ = true; }
-
-  bool layout_called_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestLayoutManager);
-};
-
-// Tests that owning window can be destroyed before the layout manager.
-TEST(LayoutManagerTest, OwningWindowDestroyedFirst) {
-  std::unique_ptr<ui::TestWindow> parent(new ui::TestWindow(1));
-  ui::TestWindow child(2);
-  TestLayoutManager layout_manager(parent.get());
-  parent->AddChild(&child);
-  EXPECT_TRUE(layout_manager.GetAndResetLayoutCalled());
-  parent.reset();
-  child.SetBounds(gfx::Rect(100, 200));
-}
-
-// Tests that the layout manager can be destroyed before the owning window.
-TEST(LayoutManagerTest, LayoutManagerDestroyedFirst) {
-  ui::TestWindow parent(1);
-  ui::TestWindow child(2);
-  std::unique_ptr<TestLayoutManager> layout_manager(
-      new TestLayoutManager(&parent));
-  parent.AddChild(&child);
-  EXPECT_TRUE(layout_manager->GetAndResetLayoutCalled());
-
-  parent.SetBounds(gfx::Rect(100, 200));
-  EXPECT_TRUE(layout_manager->GetAndResetLayoutCalled());
-
-  layout_manager.reset();
-  parent.SetBounds(gfx::Rect(200, 100));
-}
-
-}  // namespace mus
-}  // namespace ash