chromeos: convert remaining AshTest usage to AshTestBase

ash/test/ash_test_impl.h

-// 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.
-
-#ifndef ASH_TEST_ASH_TEST_IMPL_H_
-#define ASH_TEST_ASH_TEST_IMPL_H_
-
-#include <memory>
-#include <string>
-
-#include "ui/display/display_layout.h"
-#include "ui/views/widget/widget.h"
-#include "ui/wm/public/window_types.h"
-
-namespace display {
-class Display;
-}
-
-namespace gfx {
-class Rect;
-}
-
-namespace ash {
-
-class WindowOwner;
-class WmWindow;
-
-// Provides the real implementation of AshTest, see it for details.
-class AshTestImpl {
- public:
-  virtual ~AshTestImpl() {}
-
-  // Factory function for creating AshTestImpl. Implemention that is used
-  // depends upon build dependencies.
-  static std::unique_ptr<AshTestImpl> Create();
-
-  // These functions mirror that of AshTest, see it for details.
-  virtual void SetUp() = 0;
-  virtual void TearDown() = 0;
-  virtual void UpdateDisplay(const std::string& display_spec) = 0;
-  virtual std::unique_ptr<WindowOwner> CreateTestWindow(
-      const gfx::Rect& bounds_in_screen,
-      ui::wm::WindowType type,
-      int shell_window_id) = 0;
-  virtual std::unique_ptr<WindowOwner> CreateToplevelTestWindow(
-      const gfx::Rect& bounds_in_screen,
-      int shell_window_id) = 0;
-  virtual display::Display GetSecondaryDisplay() = 0;
-  virtual bool SetSecondaryDisplayPlacement(
-      display::DisplayPlacement::Position position,
-      int offset) = 0;
-  virtual void ConfigureWidgetInitParamsForDisplay(
-      WmWindow* window,
-      views::Widget::InitParams* init_params) = 0;
-  virtual void AddTransientChild(WmWindow* parent, WmWindow* window) = 0;
-};
-
-}  // namespace ash
-
-#endif  // ASH_TEST_ASH_TEST_IMPL_H_