Disable a flaky test that seems to completely blow up with some frequency on ...

chrome/browser/extensions/notifications_apitest.cc

 // Copyright (c) 2010 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/extensions/extension_apitest.h"
 
 #include "chrome/browser/browser.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/profile.h"
 
+// Fails and hoses bot, http://crbug.com/50060.
 // Flaky, http://crbug.com/42314.
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FLAKY_Notifications) {
+#if defined(OS_MACOSX)
+#define MAYBE_Notifications DISABLED_Notifications
+#else
+#define MAYBE_Notifications FLAKY_Notifications
+#endif
+IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MAYBE_Notifications) {
 #if defined(OS_LINUX) && defined(TOOLKIT_VIEWS)
   // Notifications not supported on linux/views yet.
 #else
   ASSERT_TRUE(RunExtensionTest("notifications/has_not_permission")) << message_;
   ASSERT_TRUE(RunExtensionTest("notifications/has_permission_manifest"))
       << message_;
   browser()->profile()->GetDesktopNotificationService()
       ->GrantPermission(GURL(
           "chrome-extension://peoadpeiejnhkmpaakpnompolbglelel"));
   ASSERT_TRUE(RunExtensionTest("notifications/has_permission_prefs"))
       << message_;
 #endif
 }