Fix flakiness and re-enable http search in find_in_page.FindMatchTests.testSearchInPDF

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 157 matching lines @@
       '-autofill',
       # Autofill on Mac. crbug.com/95165
       '-browsing_data.BrowsingDataTest.testClearAutofillData',
       # codesign tests should run *after* signing. crbug.com/50481
       '-codesign',
       '-crash_reporter.CrashReporterTest.testRendererCrash',  # crbug.com/69464
       # crbug.com/75724
       '-downloads.DownloadsTest.testDeclineDangerousDownload',
       # crbug.com/75724
       '-downloads.DownloadsTest.testSaveDangerousFile',
-      # crbug.com/93956
-       '-find_in_page.FindMatchTests.testSearchInPDF',
       '-ntp.NTPTest.testLaunchAppNewWindow',  # crbug.com/79812
       # Causes browser crash.  crbug.com/93548
       '-notifications.NotificationsTest.testIncognitoNotification',
       '-notifications.NotificationsTest.testOriginPrefsNotSavedInIncognito',
       '-notifications.NotificationsTest.testNotificationOrderAfterClosingOne',
       # crbug.com/70437
       '-omnibox.OmniboxTest.testHistoryResult',
       # crbug.com/91617
       '-omnibox.OmniboxTest.testContentHistory',
       # Keychain popups make autofill/password tests difficult: crbug.com/49378
@@ skipping 426 matching lines @@
 
   # HTML5 media functional tests.
   'AV_FUNC': {
      'linux': [
        'media.media_event_simple_action',
        'media.media_event_simple_test',
        'media.media_event_track',
      ],
   },
 }