Enabling 3 tests on windows as they are not failing anymore on the bot.

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 116 matching lines @@
     ],
 
     'win': [
       # ==================================================
       # Disabled tests that need to be investigated/fixed.
       # ==================================================
       # crbug.com/89081
       '-autofill.AutofillTest.testCharsStrippedForAggregatedPhoneNumbers',
       # Some download test fails on win official builder, only thru buildbot
       # when downloading the small zip file.
-      # crbug.com/50481, crbug.com/54942
-      '-downloads.DownloadsTest.testZip',
-      '-downloads.DownloadsTest.testRemoveDownload',
       # crbug.com/91225
       '-find_in_page.FindMatchTests.testSearchInPDF',
       # Disabled on vista in the actual test. crbug.com/89767
       # -imports.ImportsTest.testImportFirefoxDataTwice
       # Disabled on vista in the actual test. crbug.com/89767
       # -imports.ImportsTest.testFirefoxImportFromPrefs
       # Disabled on vista in the actual test. crbug.com/89767
       # -imports.ImportsTest.testImportFirefoxPasswordsFromPrefs
       # crbug.com/66072
       '-notifications.NotificationsTest.testNotificationOrderAfterClosingOne',
       # crbug.com/85598
       '-ntp.NTPTest.testGetAppsWhenInstallApp',
       '-ntp.NTPTest.testLaunchAppFullScreen',
       '-ntp.NTPTest.testLaunchAppNewWindow',
       '-ntp.NTPTest.testLaunchAppPinnedTab',
       '-ntp.NTPTest.testLaunchAppRegularTab',
       '-ntp.NTPTest.testLaunchAppWithDefaultSettings',
       '-ntp.NTPTest.testUninstallApp',
       # crbug.com/91222
       '-passwords.PasswordTest.testDisplayAndSavePasswordInfobar',
       # crbug.com/70694, crbug.com/73078
       '-passwords.PasswordTest.testInfoBarDisappearByReload',
       '-passwords.PasswordTest.testNeverSavePasswords',
       # crbug.com/91887
       '-passwords.PasswordTest.testInfoBarDisappearByNavigatingPage',
       # crbug.com/67588
       '-passwords.PasswordTest.testSavedPasswordInTabsAndWindows',
-      '-prefs.PrefsTest.testDownloadDirPref',
       # crbug.com/88679
       '-sync',
       # crbug.com/86949
       '-sync.SyncTest.testRestartBrowser',
       # crbug.com/87642
       '-sync.SyncTest.testDisableAndEnableDatatypes',
       # crbug.com/88190
       '-passwords.PasswordTest.testClearFetchedCredForNewUserName',
       # crbug.com/89784
       '-autofill.AutofillTest.testProfileSavedWithValidCountryPhone',
@@ skipping 302 matching lines @@
 
   # HTML5 media functional tests.
   'AV_FUNC': {
      'linux': [
        'media.media_event_simple_action',
        'media.media_event_simple_test',
        'media.media_event_track',
      ],
   },
 }