Fix pyauto flakiness by waiting for notification that the renderer process'

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 13 matching lines @@
     'autofill',
     'bookmark_bar',
     'bookmarks',
     'browser',
     'browsing_data',
     'codesign',
     'content',
     'cookies',
     'crash_reporter',
     'databases',
-    # Reloading after kill doesn't load the page, crbug.com/64708.
-    '-databases.DatabasesTest.testModificationsPersistAfterRendererCrash',
     'downloads',
     'find_in_page',
     # Turkish I problem. crbug.com/60638
     '-find_in_page.FindMatchTests.testLocalizationAndCaseOrder',
     'execute_javascript',
     'history',
     'imports',
     'infobars',
     'navigation',
     'notifications',
@@ skipping 85 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',
   ],
 }