Disable 2 tests on linux

browsing_data.BrowsingDataTest.testClearCookies
databases.DatabasesTest.testDeleteAndUpdateDatabase

BUG=123419
TEST=NONE
Review URL: https://chromiumcodereview.appspot.com/9969184

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@132431 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/functional/PYAUTO_TESTS

@@ -602,6 +602,9 @@
       '-flash.FlashTest.testSingleFlashPluginProcess',
       '-plugins.PluginsTest.testBlockAllPlugins',
       '-plugins.PluginsTest.testBlockPluginException',
+      # crbug.com/123419
+      '-browsing_data.BrowsingDataTest.testClearCookies'
+      '-databases.DatabasesTest.testDeleteAndUpdateDatabase'
     ],
 
     'chromeos': [