Disable failing notifications tests

chrome/test/functional/PYAUTO_TESTS

 # 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.
 #
 # This file lists the pyauto tests that run as a part of the functional test
 # suite.
 #
 # Tests can be enabled on a per-platform basis. Tests not listed here will
 # not be run.
 #
@@ skipping 27 matching lines @@
     # Turkish I problem. crbug.com/60638
     '-find_in_page.FindMatchTests.testLocalizationAndCaseOrder',
     'execute_javascript',
     'history',
     'imports',
     'infobars',
     'navigation',
     'notifications',
     # Sometimes notification process hasn't been created yet, crbug.com/65408
     '-notifications.NotificationsTest.testKillNotificationProcess',
+    # crbug.com/66072
+    '-notifications.NotificationsTest.testNotificationReplacement',
+    '-notifications.NotificationsTest.testNotificationOrderAfterClosingOne',
     'ntp',
     'omnibox',
     'passwords',
     'pdf',
     'plugins',
     # 'popups',  crbug.com/59208
     'prefs',
     'search_engines',
     'special_tabs',
     # 'sync',  crbug.com/60970
@@ skipping 70 matching lines @@
     '-downloads.DownloadsTest.testBigZip',
     '-downloads.DownloadsTest.testCancelDownload',
     '-downloads.DownloadsTest.testPauseAndResume',
     '-translate.TranslateTest.testDownloadsNotTranslated',
     # crosbug.com/9499
     '-crash_reporter.CrashReporterTest.testRendererCrash',
     # crbug.com/64269
     '-passwords.PasswordTest.testDisplayAndSavePasswordInfobar',
   ],
 }