1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/extensions/extension_browsertest.h"
6#include "chrome/browser/ui/browser.h"
7#include "content/public/browser/render_view_host.h"
8#include "content/public/common/web_preferences.h"
9#include "extensions/browser/extension_host.h"
10#include "extensions/browser/extension_system.h"
11#include "extensions/browser/process_manager.h"
12
13// Tests that background pages are marked as never visible to prevent GPU
14// resource allocation. See crbug.com/362165 and crbug.com/163698.
15IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, BackgroundPageIsNeverVisible) {
16  ASSERT_TRUE(LoadExtension(
17      test_data_dir_.AppendASCII("good").AppendASCII("Extensions")
18                    .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
19                    .AppendASCII("1.0.0.0")));
20
21  extensions::ProcessManager* manager =
22      extensions::ExtensionSystem::Get(browser()->profile())->process_manager();
23  extensions::ExtensionHost* host =
24      FindHostWithPath(manager, "/backgroundpage.html", 1);
25  ASSERT_TRUE(host->host_contents()->GetDelegate()->IsNeverVisible(
26      host->host_contents()));
27}
28