Use mojo app list interfaces for mash and classic ash.

ui/app_list/presenter/app_list_presenter_impl_unittest.cc

Index: ui/app_list/presenter/app_list_presenter_impl_unittest.cc
diff --git a/ui/app_list/presenter/app_list_presenter_impl_unittest.cc b/ui/app_list/presenter/app_list_presenter_impl_unittest.cc
index cd9941f9d862fa70d8233f0fba1939cdb2d0f144..990065473dfd9c5ed66813821432d270e9eb6ad4 100644
--- a/ui/app_list/presenter/app_list_presenter_impl_unittest.cc
+++ b/ui/app_list/presenter/app_list_presenter_impl_unittest.cc
@@ -78,7 +78,7 @@ class AppListPresenterDelegateFactoryTest
 
   // 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_);
@@ -114,7 +114,6 @@ class AppListPresenterImplTest : public aura::test::AuraTestBase {
   void TearDown() override;
 
  private:
-  std::unique_ptr<AppListPresenterDelegateFactoryTest> factory_;
   std::unique_ptr<AppListPresenterImpl> presenter_;
   std::unique_ptr<aura::Window> container_;
 
@@ -129,8 +128,8 @@ void AppListPresenterImplTest::SetUp() {
   AuraTestBase::SetUp();
   new wm::DefaultActivationClient(root_window());
   container_.reset(CreateNormalWindow(0, root_window(), nullptr));
-  factory_.reset(new AppListPresenterDelegateFactoryTest(container_.get()));
-  presenter_.reset(new AppListPresenterImpl(factory_.get()));
+  presenter_ = base::MakeUnique<AppListPresenterImpl>(
+      base::MakeUnique<AppListPresenterDelegateFactoryTest>(container_.get()));
 }
 
 void AppListPresenterImplTest::TearDown() {