Re-write many calls to WrapUnique() with MakeUnique()

ash/app_list/app_list_presenter_delegate_factory.cc

Index: ash/app_list/app_list_presenter_delegate_factory.cc
diff --git a/ash/app_list/app_list_presenter_delegate_factory.cc b/ash/app_list/app_list_presenter_delegate_factory.cc
index e74b84b3bc2dbdc7d800ec6e7b83a6695201f3e8..0c312e720c2c7178646768319334e057093583e7 100644
--- a/ash/app_list/app_list_presenter_delegate_factory.cc
+++ b/ash/app_list/app_list_presenter_delegate_factory.cc
@@ -19,8 +19,8 @@ AppListPresenterDelegateFactory::~AppListPresenterDelegateFactory() {}
 std::unique_ptr<app_list::AppListPresenterDelegate>
 AppListPresenterDelegateFactory::GetDelegate(
     app_list::AppListPresenter* presenter) {
-  return base::WrapUnique(
-      new AppListPresenterDelegate(presenter, view_delegate_factory_.get()));
+  return base::MakeUnique<AppListPresenterDelegate>(
+      presenter, view_delegate_factory_.get());
 }
 
 }  // namespace ash