Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/apps/chrome_app_window_delegate_gtk.cc

Index: chrome/browser/ui/gtk/apps/chrome_app_window_delegate_gtk.cc
diff --git a/chrome/browser/ui/gtk/apps/chrome_app_window_delegate_gtk.cc b/chrome/browser/ui/gtk/apps/chrome_app_window_delegate_gtk.cc
deleted file mode 100644
index 853eae1a0f40ae66b8b4a06dc716010e7849dcc8..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/gtk/apps/chrome_app_window_delegate_gtk.cc
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2014 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/apps/chrome_app_window_delegate.h"
-
-#include "chrome/browser/ui/gtk/apps/native_app_window_gtk.h"
-
-// static
-apps::NativeAppWindow* ChromeAppWindowDelegate::CreateNativeAppWindowImpl(
-    apps::AppWindow* app_window,
-    const apps::AppWindow::CreateParams& params) {
-  return new NativeAppWindowGtk(app_window, params);
-}