Use mojo app list interfaces for mash and classic ash.

chrome/browser/ui/ash/app_list/app_list_presenter_service.h

Index: chrome/browser/ui/ash/app_list/app_list_presenter_service.h
diff --git a/chrome/browser/ui/ash/app_list/app_list_presenter_service.h b/chrome/browser/ui/ash/app_list/app_list_presenter_service.h
index 969cc8e46c47ab00a72e58b68a707c132ffdabd6..7ca5d2552c7c5b7893fd704c97eed016a88e30b8 100644
--- a/chrome/browser/ui/ash/app_list/app_list_presenter_service.h
+++ b/chrome/browser/ui/ash/app_list/app_list_presenter_service.h
@@ -10,7 +10,7 @@
 #include "ui/app_list/presenter/app_list_presenter.mojom.h"
 
 namespace app_list {
-class AppListPresenter;
+class AppListPresenterImpl;
 }
 
 // A service providing the Mojo interface to manipulate the App List.
@@ -25,7 +25,7 @@ class AppListPresenterService : public app_list::mojom::AppListPresenter {
   void ToggleAppList(int64_t display_id) override;
 
  private:
-  app_list::AppListPresenter* GetPresenter();
+  app_list::AppListPresenterImpl* GetPresenter();
 
   mojo::Binding<app_list::mojom::AppListPresenter> binding_;