GitLab

The tests affected are:
    PolicyTest.ExtensionInstallSources
    PrefsFunctionalTest.TestDownloadDirPref
    WebNavigationApiTest.Download

BUG=372017
R=bauerb@chromium.org
TBR=jam, joaodasilva

Review URL: https://codereview.chromium.org/273233004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269639 0039d316-1c4b-4281-b951-d872f2087c98