Re-land:

chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.cc

Index: chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.cc
===================================================================
--- chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.cc	(revision 85284)
+++ chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.cc	(working copy)
@@ -1,23 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.h"
-
-#include "chrome/browser/ui/gtk/gtk_util.h"
-
-////////////////////////////////////////////////////////////////////////////////
-// AutocompletePopupGtk, public:
-
-AutocompletePopupGtk::AutocompletePopupGtk() {
-}
-
-AutocompletePopupGtk::~AutocompletePopupGtk() {
-}
-
-gfx::NativeView AutocompletePopupGtk::GetRelativeWindowForPopup(
-    gfx::NativeView edit_native_view) const {
-  GtkWidget* toplevel = gtk_widget_get_toplevel(edit_native_view);
-  DCHECK(GTK_WIDGET_TOPLEVEL(toplevel));
-  return toplevel;
-}