Switch gcl/git upload to use https://codereview.chromium.org instead of https://chromiumcodereview.appspot.com. It's been a week since the SSL certificate got added, and the old DNS records had a TTL of 7 days.

Review URL: https://chromiumcodereview.appspot.com/10910225

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@156316 0039d316-1c4b-4281-b951-d872f2087c98