diff -up chromium-57.0.2987.110/chrome/browser/ui/libgtkui/gtk_ui.cc.b95cf28 chromium-57.0.2987.110/chrome/browser/ui/libgtkui/gtk_ui.cc
--- chromium-57.0.2987.110/chrome/browser/ui/libgtkui/gtk_ui.cc.b95cf28	2017-03-28 11:42:53.308857207 -0400
+++ chromium-57.0.2987.110/chrome/browser/ui/libgtkui/gtk_ui.cc	2017-03-28 11:43:04.172579015 -0400
@@ -676,7 +676,7 @@ std::unique_ptr<views::Border> GtkUi::Cr
             : nullptr);
   }
 
-  return gtk_border;
+  return std::move(gtk_border);
 }
 
 void GtkUi::AddWindowButtonOrderObserver(