Enabling pdf search 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 83 matching lines @@
     ],
 
     'mac': [
       # Keychain popups make password & autofill tests difficult.
       # crbug.com/49378
       '-passwords',
       '-autofill',
       # codesign tests should run *after* signing. crbug.com/50481
       '-codesign',
       '-content.ContentTest.testThreeWindows',  # crbug.com/47457
-      '-find_in_page.FindMatchTests.testSearchInPDF',  # crbug.com/68645
       '-instant.InstantTest.testInstantNavigation',  # crbug.com/69090
       '-crash_reporter.CrashReporterTest.testRendererCrash',  # crbug.com/69464
     ],
 
     'linux': [  # linux != chromeos
       '-browser.BrowserTest.testWindowResize',  # crbug.com/44963
       '-browser.BrowserTest.testFlashLoadsAfterKill',  # crbug.com/63039
       '-content.ContentTest.testThreeWindows',  # crbug.com/47457
       # crbug.com/64664
       '-databases.DatabasesTest.testReloadActiveTab',
@@ skipping 56 matching lines @@
     'linux': [
     ],
 
     'chromeos': [
       # crosbug.com/6856
       '-translate.TranslateTest.testSessionRestore',
       '-translate.TranslateTest.testDownloadsNotTranslated',
     ],
   }
 }