Reverse the change in crrev.com/222879

ui/views/widget/widget_unittest.cc

Index: ui/views/widget/widget_unittest.cc
diff --git a/ui/views/widget/widget_unittest.cc b/ui/views/widget/widget_unittest.cc
index 67887b1d5f7ff9c27fa4b94046e3beccf3529b05..c24f2e192590dc5aa07daced325842c2f2a9cc06 100644
--- a/ui/views/widget/widget_unittest.cc
+++ b/ui/views/widget/widget_unittest.cc
@@ -1213,8 +1213,6 @@ TEST_F(WidgetTest, DesktopAuraFullscreenWindowOwnerDestroyed) {
   RunPendingMessages();
 }
 
-// TODO(erg): Disabled on desktop linux until http://crbug.com/288988 is fixed.
-#if !defined(OS_LINUX)
 TEST_F(WidgetTest, DesktopAuraTopLevelOwnedPopupTest) {
   ViewsDelegate::views_delegate = NULL;
   DesktopAuraTopLevelWindowTest popup_window;
@@ -1225,7 +1223,6 @@ TEST_F(WidgetTest, DesktopAuraTopLevelOwnedPopupTest) {
   ASSERT_NO_FATAL_FAILURE(popup_window.DestroyOwnedWindow());
   RunPendingMessages();
 }
-#endif
 
 // Test to ensure that the aura Window's visiblity state is set to visible if
 // the underlying widget is hidden and then shown.