Re-land:

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

Index: chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.h
===================================================================
--- chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.h	(revision 85284)
+++ chrome/browser/ui/views/autocomplete/autocomplete_popup_gtk.h	(working copy)
@@ -1,29 +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.
-
-#ifndef CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_GTK_H_
-#define CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_GTK_H_
-#pragma once
-
-#include "base/memory/weak_ptr.h"
-#include "views/widget/widget_gtk.h"
-
-class AutocompletePopupGtk
-    : public views::WidgetGtk,
-      public base::SupportsWeakPtr<AutocompletePopupGtk> {
- public:
-  // Creates the popup and shows it. |edit_view| is the edit that created us.
-  AutocompletePopupGtk();
-  virtual ~AutocompletePopupGtk();
-
-  // Returns the window the popup should be relative to. |edit_native_view| is
-  // the native view of the autocomplete edit.
-  gfx::NativeView GetRelativeWindowForPopup(
-      gfx::NativeView edit_native_view) const;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(AutocompletePopupGtk);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_AUTOCOMPLETE_AUTOCOMPLETE_POPUP_GTK_H_