Use mojo app list interfaces for mash and classic ash.

ash/app_list/app_list_presenter_delegate_factory.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_APP_LIST_APP_LIST_PRESENTER_DELEGATE_FACTORY_H_
 #define ASH_APP_LIST_APP_LIST_PRESENTER_DELEGATE_FACTORY_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "ui/app_list/presenter/app_list_presenter_delegate_factory.h"
 
 namespace app_list {
-class AppListPresenter;
 class AppListViewDelegateFactory;
 }
 
 namespace ash {
 
 class ASH_EXPORT AppListPresenterDelegateFactory
     : public app_list::AppListPresenterDelegateFactory {
  public:
   explicit AppListPresenterDelegateFactory(
       std::unique_ptr<app_list::AppListViewDelegateFactory>);
   ~AppListPresenterDelegateFactory() override;
 
   std::unique_ptr<app_list::AppListPresenterDelegate> GetDelegate(
-      app_list::AppListPresenter* presenter) override;
+      app_list::AppListPresenterImpl* presenter) override;
 
  private:
   std::unique_ptr<app_list::AppListViewDelegateFactory> view_delegate_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListPresenterDelegateFactory);
 };
 
 }  // namespace ash
 
 #endif  // ASH_APP_LIST_APP_LIST_PRESENTER_DELEGATE_FACTORY_H_