Disable an autofill test in pyAuto.

chrome/test/functional/PYAUTO_TESTS

 # Copyright (c) 2011 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 15 matching lines @@
   # continuous builder.
   # This is the suite that gets run on 'Chromium' builds.
   'CONTINUOUS': {
     'all': [
       'autofill',
       # crbug.com/77113 - M13 feature.
       '-autofill.AutofillTest.testProfileWithEmailInOtherFieldNotSaved',
       # crbug.com/81271
       '-autofill.AutofillTest.testMergeAggregatedProfilesWithSameAddress',
       '-autofill.AutofillTest.testProfilesNotMergedWhenNoMinAddressData',
+      # crbug.com/83686
+      '-autofill.AutofillTest.testFillProfileCrazyCharacters',
       'bookmark_bar',
       'bookmarks',
       'browser',
       'browsing_data',
       'codesign',
       'content',
       '-content.ContentTest.testTopSitesContent',  # crbug.com/71824
       'cookies',
       'crash_reporter',
       'databases',
@@ skipping 193 matching lines @@
   # HTML5 media performance tests.
   'MEDIA_TESTS': {
     'linux': [
       'media.media_playbacktime',
       'media.media_perf',
       'media.media_fps',
       'media.media_event_simple_test',
     ],
   },
 }