Use mojo app list interfaces for mash and classic ash.

ui/app_list/presenter/app_list_presenter_impl_unittest.cc

 // Copyright 2013 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/app_list_presenter_impl.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "ui/app_list/presenter/app_list_presenter_delegate_factory.h"
@@ skipping 60 matching lines @@
     : public AppListPresenterDelegateFactory {
  public:
   explicit AppListPresenterDelegateFactoryTest(aura::Window* container)
       : container_(container) {}
   ~AppListPresenterDelegateFactoryTest() override {}
 
   AppListPresenterDelegateTest* current_delegate() { return current_delegate_; }
 
   // AppListPresenterDelegateFactory:
   std::unique_ptr<AppListPresenterDelegate> GetDelegate(
-      AppListPresenter* presenter) override {
+      AppListPresenterImpl* presenter) override {
     current_delegate_ =
         new AppListPresenterDelegateTest(container_, &app_list_view_delegate_);
     return base::WrapUnique(current_delegate_);
   }
 
  private:
   aura::Window* container_;
   AppListPresenterDelegateTest* current_delegate_ = nullptr;
   test::AppListTestViewDelegate app_list_view_delegate_;
 
@@ skipping 110 matching lines @@
 TEST_F(AppListPresenterImplTest, WidgetDestroyed) {
   presenter()->Show(GetDisplayId());
   EXPECT_TRUE(presenter()->GetTargetVisibility());
   presenter()->GetView()->GetWidget()->CloseNow();
   EXPECT_FALSE(presenter()->GetTargetVisibility());
   test::AppListPresenterImplTestApi presenter_test_api(presenter());
   EXPECT_FALSE(presenter_test_api.presenter_delegate());
 }
 
 }  // namespace app_list