Delete the GTK+ port of Chrome.

chrome/browser/platform_util_common_linux.cc

-// 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/platform_util.h"
-
-#include <gtk/gtk.h>
-
-namespace platform_util {
-
-gfx::NativeWindow GetTopLevel(gfx::NativeView view) {
-  // A detached widget won't have a toplevel window as an ancestor, so we can't
-  // assume that the query for toplevel will return a window.
-  GtkWidget* toplevel = gtk_widget_get_ancestor(view, GTK_TYPE_WINDOW);
-  return GTK_IS_WINDOW(toplevel) ? GTK_WINDOW(toplevel) : NULL;
-}
-
-gfx::NativeView GetParent(gfx::NativeView view) {
-  return gtk_widget_get_parent(view);
-}
-
-bool IsWindowActive(gfx::NativeWindow window) {
-  return gtk_window_is_active(window);
-}
-
-void ActivateWindow(gfx::NativeWindow window) {
-  gtk_window_present(window);
-}
-
-bool IsVisible(gfx::NativeView view) {
-  return gtk_widget_get_visible(view);
-}
-
-}  // namespace platform_util