Fix object ownership in ui/base/models.

ash/shell/app_list.cc

Index: ash/shell/app_list.cc
diff --git a/ash/shell/app_list.cc b/ash/shell/app_list.cc
index e7e79de016c129105100a3c09da90a7806f7a433..66a2982946f71163b760d93406f56b21dd470582 100644
--- a/ash/shell/app_list.cc
+++ b/ash/shell/app_list.cc
@@ -15,6 +15,7 @@
 #include "base/files/file_path.h"
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/string_search.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/scoped_vector.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ -268,7 +269,8 @@ class ExampleAppListViewDelegate : public app_list::AppListViewDelegate {
           base::UTF8ToUTF16(WindowTypeShelfItem::GetTitle(type));
       if (base::i18n::StringSearchIgnoringCaseAndAccents(query, title, NULL,
                                                          NULL)) {
-        model_->results()->Add(new ExampleSearchResult(type, query));
+        model_->results()->Add(
+            base::MakeUnique<ExampleSearchResult>(type, query));
       }
     }
   }