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      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 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      6 // Use of this source code is governed by a BSD-style license that can be
      7 // found in the LICENSE file.
      8 
      9 #include "chrome/browser/extensions/extension_browsertest.h"
     10 #include "chrome/browser/extensions/extension_host.h"
     11 #include "chrome/browser/extensions/extension_process_manager.h"
     12 #include "chrome/browser/extensions/extension_system.h"
     13 #include "chrome/browser/ui/browser.h"
     14 #include "content/public/browser/render_view_host.h"
     15 #include "webkit/common/webpreferences.h"
     16 
     17 // Tests that GPU acceleration is disabled for extension background
     18 // pages. See crbug.com/163698 .
     19 IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, WebKitPrefsBackgroundPage) {
     20   ASSERT_TRUE(LoadExtension(
     21       test_data_dir_.AppendASCII("good").AppendASCII("Extensions")
     22                     .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
     23                     .AppendASCII("1.0.0.0")));
     24 
     25   ExtensionProcessManager* manager =
     26       extensions::ExtensionSystem::Get(browser()->profile())->process_manager();
     27   extensions::ExtensionHost* host =
     28       FindHostWithPath(manager, "/backgroundpage.html", 1);
     29   WebPreferences prefs =
     30       host->render_view_host()->GetWebkitPreferences();
     31   ASSERT_FALSE(prefs.accelerated_compositing_enabled);
     32 }
     33