Disable AppWindowTest.InitFullscreenAndAlwaysOnTop on Windows. Flaky.

extensions/browser/app_window/app_window_interactive_uitest.cc

 // 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 "build/build_config.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
 #include "extensions/browser/app_window/native_app_window.h"
 
 namespace extensions {
 
@@ skipping 115 matching lines @@
 IN_PROC_BROWSER_TEST_F(AppWindowTest, MAYBE_RuntimeFullscreenToAlwaysOnTop) {
   AppWindow* window = CreateTestAppWindow("{}");
   ASSERT_TRUE(window);
 
   window->Fullscreen();
   CheckFullscreenToAlwaysOnTop(window);
 
   CloseAppWindow(window);
 }
 
-#if defined(OS_MACOSX)
+// Flaky on Windows (see http://crbug.com/581131).
+#if defined(OS_MACOSX) || defined(OS_WIN)
 #define MAYBE_InitFullscreenAndAlwaysOnTop DISABLED_InitFullscreenAndAlwaysOnTop
 #else
 #define MAYBE_InitFullscreenAndAlwaysOnTop InitFullscreenAndAlwaysOnTop
 #endif
 
 // Tests a window created with both fullscreen and always-on-top enabled. Ensure
 // that always-on-top is only applied when the window exits fullscreen.
 IN_PROC_BROWSER_TEST_F(AppWindowTest, MAYBE_InitFullscreenAndAlwaysOnTop) {
   AppWindow* window = CreateTestAppWindow(
       "{ \"alwaysOnTop\": true, \"state\": \"fullscreen\" }");
@@ skipping 32 matching lines @@
   EXPECT_FALSE(window->GetBaseWindow()->IsAlwaysOnTop());
 
   // Ensure that always-on-top remains disabled.
   window->Restore();
   EXPECT_FALSE(window->GetBaseWindow()->IsAlwaysOnTop());
 
   CloseAppWindow(window);
 }
 
 }  // namespace extensions